Question

At the beginning of the project, it may not be possible to estimate the costs for all activities with a level of confidence regarding their accuracy. This is especially true for_________.

Answer 1

Answer: Longer-term project

Explanation:

At the beginning of a project, it may not be possible to estimate the costs for all activities with some levels of confidence regarding their accuracy if the project isn't a short-term project, because it's not really possible to accurately fortell the costs of unforseeable outcomes and factors that may affect the project in one way or the other in the long run.