You track all costs on your project. You need to track task-level airfare costs that do not depend on the amount of work or duration of a task. What should you do?

A.
Use a work type resource.

B.
Create a custom field and capture travel costs at the project level.

C.
Use a budget resource.

D.
Use a cost type resource.

Explanation:
The currency value of cost resources does not depend on the amount of work done on or the duration of the task that they are assigned to.