To add prepopulated subjects for Tasksand Events with the specific subjects as mentioned, the most efficient way is:
* Add the new values to the predefined field values for the global actions New Event and New Task:
This allows the administrator to define specific subjects for tasks and events directly within the global actions. When a user selects either of these actions, they will see the predefined subjects (such as Schedule Site Visit, Send Contract, Site Visit, and Ride Along) available in the subject field.
Options A, C, and D are not as straightforward or effective in achieving this specific requirement.
References:
* Salesforce Help: Global Actions
* Salesforce Trailhead: Customize Standard Global Actions