After a maintenance order is technically completed, the responsible person can perform the following operations1:
Lock or unlock the order: This prevents or allows further changes to the order data, such as actual costs, settlement rule, or confirmation data.
Change the settlement rule: This allows the responsible person to adjust the distribution of costs to the relevant receivers, such as cost centers, assets, or orders.
Post goods movements: This allows the responsible person to record the consumption or return of materials that were used for the maintenance work.
Enter measurement documents: This allows the responsible person to record the measurement readings of the technical objects that were maintained.
The responsible person cannot perform the following operations after a maintenance order is technically completed1:
Update the estimated costs: This is only possible before the order is released or during the execution phase.
Change the planned costs: This is only possible before the order is released or during the execution phase.
Change the order type: This is only possible before the order is released.
Change the order status: This is only possible before the order is technically completed or after it is reversed.
Therefore, the correct answers are A and C. References: 1: Maintenance Order Types | SAP Help Portal

Explanation
The Report Malfunction app allows the maintenance technician to perform the following steps when reporting a malfunction of a technical object:
Display the current location of the technical object. The app shows the geographical location of the technical object on a map, if the Geographical Enablement Framework is activated. This helps the technician to locate the technical object and plan the travel route1 Add a URL to provide further information. The app allows the technician to attach a URL to the malfunction report, such as a link to a video or a website that shows the problem orthe solution. This helps the technician to provide additional information and documentation for the malfunction1 View details of the technical object by navigating to the Asset Viewer. The app allows the technician to access the Asset Viewer app from the malfunction report, where they can view the technical object details, such as the structure, documents, history, and measurements. This helps the technician to gather information about the technical object and its condition1 The Report Malfunction app does not allow the maintenance technician to perform the following steps when reporting a malfunction of a technical object:
Select and print the maintenance order shop papers. The app does not provide the option to select and print the maintenance order shop papers. The technician can use a different app, such as "Manage Maintenance Orders", to print the shop papers2 Input estimated costs for repair malfunction. The app does not provide the option to input estimated costs for repair malfunction. The technician can use a different app, such as "Manage Maintenance Orders", to enter the planned costs for the maintenance order2 References: 1: Report and Repair Malfunction | SAP Help Portal 2: Manage Maintenance Orders | SAP Help Portal

Linear data is used to describe the location and extent of linear assets, such as pipelines, roads, or cables. Linear data can be stored in the master data of technical objects, such as functional locations and equipment, as well as in the transactional data of maintenance processes, such as notifications, orders, and confirmations. The objects that have been enhanced with linear data in maintenance processes are:
Work order confirmation: You can record the processing status of a maintenance order by entering linear data in the confirmation. You can also use the linear data from the order operation or the notification item as a default value1 Maintenance plan item: You can define inspections and maintenance tasks in linear assets by creating and managing the maintenance items in maintenance plans with linear data. You can also use the linear data from the technical object or the task list as a default value2 Notification item: You can describe the condition of your linear asset or report a malfunction by entering linear data in the notification item. You can also use the linear data from the technical object as a default value3 References: 1: Linear Data in Maintenance Order Confirmation 2: Linear Data in Maintenance Plan Item 3: Linear Data in Maintenance Notification Item

When implementing UI technologies in SAP S/4HANA Asset Management, you have to consider the following points:
Web Dynpro apps can be used in the SAP Fiori Launchpad. This is true because Web Dynpro is one of the UI technologies that are supported by the SAP Fiori Launchpad, along with SAP Fiori apps, SAP GUI for HTML, and WebClient UI12.
SAP Fiori Launchpad supports only SAPUI5 apps. This is false because SAP Fiori Launchpad supports not only SAPUI5 apps, but also other UI technologies such as Web Dynpro, SAP GUI for HTML, and WebClient UI12.
SAP GUI for HTML can be used in the SAP Fiori Launchpad. This is true because SAP GUI for HTML is one of the UI technologies that are supported by the SAP Fiori Launchpad, along with SAP Fiori apps, Web Dynpro, and WebClient UI12.
The cloud version can also use SAP GUI for Windows. This is false because SAP GUI for Windows is only available for the on-premise version of SAP S/4HANA Asset Management, not for the cloud version31.