The correct answer is C. Software escrow agreement. A software escrow agreement is a legal arrangement between three parties: the software developer (licensor), the end-user (licensee), and an escrow agent. The agreement ensures that the software's source code and other relevant assets are securely stored with the escrow agent, and can be released to the licensee under certain conditions, such as the licensor's bankruptcy, insolvency, or failure to provide support or maintenance1. A software escrow agreement can provide the licensee with assurance and continuity for the software they depend on, and protect them from losing access or functionality in case of any unforeseen events or disputes with the licensor1.

A post-implementation change review is the best compensating control against segregation of duties conflicts in new code development. This process involves a thorough review of the changes after they have been implemented to ensure that they meet their objectives and that the stakeholders are satisfied with the results1.
It provides an opportunity to identify and correct any issues or conflicts that may have arisen during the development and implementation process. While other options like adding developers to the change approval board, limiting code deployment access to a small number of people, and creating staging environments can also serve as compensating controls, a post-implementation change review provides a more comprehensive and effective control mechanism21.
References:
* Review and Close Change process ST 2 5 - Micro Focus
* Change Management for SOC: Risks, Controls, Audits, Guidance

The technology that has the smallest maximum range for data transmission between devices is near-field communication (NFC). NFC is a short-range wireless technology that enables two devices to communicate when they are in close proximity, usually within a few centimeters. NFC is commonly used for contactless payments, smart cards, and device pairing. According to the Bluetooth Technology Website1, the effective range of NFC is less than a meter, while the other technologies have much longer ranges. Wi-Fi can reach up to 100 meters indoors and300 meters outdoors2. Bluetooth can reach up to 800 feet with Bluetooth5.0 specification3. Long-term evolution (LTE) canreach up to several kilometers depending on the cell tower and the device4.
References:
* 5: What is Wi-Fi? - Definition from WhatIs.com
* 6: Understanding Bluetooth Range | Bluetooth Technology Website
* 7: What is Bluetooth Range? What You Need to Know
* 8: How far can LTE signals travel? - Quora

Impact assessment is an activity that occurs during the issues management process for a system development project. Issues management is a process of identifying, analyzing, resolving, and monitoring issues that may affect the project scope, schedule, budget, or quality. Impact assessment is a technique of evaluating the severity and priority of an issue, as well as its implications for the project objectives and deliverables. The other options are not activities that occur during the issues management process, but rather related to other processes such as contingency planning, configuration management, or help desk management. References:
* CISA Review Manual (Digital Version), Chapter 4, Section 4.3.31
* CISA Review Questions, Answers & Explanations Database, Question ID 217