Answer:
A. Mutually exclusive
Step-by-step explanation:
-Mutually exclusive means that two events can't happen at the same time.
-Interdependent is when two or more things depend on each other.
-Independent is when something is not under the influence of something else.
-Co-dependent: is when something depends on the control of something else.
According to this, these projects are mutually exclusive because if one project is taken the other one can't.