The correct answers are C. Email Alert, D. Task, and E. Outbound Message.
In a standard Salesforce approval process, available approval action types include Email Alerts, Tasks, Field Updates, and Outbound Messages. Since Field Update is not listed in the answer choices, the three valid action types from the options are Email Alert, Task, and Outbound Message. Salesforce documentation identifies approval-process actions around task, email alert, field update, and outbound message automation.
A). Invocable Flow is incorrect because it is not a standard approval-process action type in this exam context.
B). Decision Element is incorrect because Decision is a Flow element, not an approval-process action.

The correct answer is D. Set the Organization-Wide Default to Private for accounts. Create criteria-based sharing rules for each marketing team, and create an Inside Sales Team profile with the "View All" setting for Accounts.
The field sales team should only see Accounts they own, so Account OWD must be Private. Salesforce OWDs define users' default access to records they do not own.
North American and European marketing teams need access by region, so use criteria-based sharing rules based on the Account region. Salesforce criteria-based sharing rules share records when records match field criteria.
Inside sales needs access to all Account records, so give that group View All Records on Account. Salesforce object permissions define that View All Records lets users view all records for that object regardless of sharing settings.

The verified current-platform answer is D. Salesforce Conditional Field Formatting in Lightning App Builder allows Dynamic Forms fields to display configurable icons and colors according to rules and criteria.
Critically, Salesforce explicitly supports formula fields when the formula resolves to a supported data type, so the existing formula field can drive the formatting rules. The app builder can configure different icons and icon colors without embedding presentation logic into the formula itself. IMAGE() and CASE() can produce formula-based images, but they are an older technique and do not provide the native Dynamic Forms conditional-formatting capability described by the current platform. Field help is static, and Screen Flow is unnecessarily complex. This corrects the PDF answer key, which lists A; current Salesforce documentation supports D.

The correct answer is C. Two master-detail relationships on a new custom object.
This requirement is a many-to-many relationship: one Contact can relate to many Solar Projects, and one Solar Project can relate to many Contacts. Salesforce models this with a junction object, which is a custom object with two master-detail relationships.
A simple lookup on one object would not properly support the many-to-many data model.