$[45$ pts$]$ The following projects are utilized. Projects A and B are independent. Projects

C and D are mutually exclusive and both are dependent on the acceptance of B $.$ Project

E is dependent on the acceptance of A $.$

A:

B:

E:

$($a$)[20$ pts$]$ List all mutually exclusive alternatives.

$($b$)[25$ pts$]$ Which alternative should be chosen if the MARR equals $10\%$ and invest$-$

ment capital is limited to $$44$ based on ERR evaluation?