Project managers must often face the challenge of compressing the project schedule. all of the following actions can be taken to reduce the duration of the critical path except:
a. overlap sequential activities using finish-to-finish, start-to-start, or start-to-finish relationships.
b. reduce the project scope and /or quality.
c. use the float in critical path activities
d. partially overlap sequential activities by using time leads.

A) Overlap sequential activities using finish-to-finish, start-to-start, or start-to-finish relationships.

Explanation:

If the project manager uses finish to finish relationships, a successor activity cannot finish until the predecessor activity has not finished.  

If the project manager uses start to start relationships, a successor activity cannot start until the predecessor activity has not started.  

If the project manager uses start to finish relationships, a successor activity cannot finish until the predecessor activity has not started.

Overlap sequential activities using finish-to-finish relationships

Explanation:

Overlap sequential activities using finish-to-finish relationships. This overlaping does not account for unexpected events and might not account possible relations between the legs or stages of a project

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