Answer:
Applied manufacturing overhead is $4,000
Explanation:
Given,
Total manufacturing overhead = $200,000
Activity level = 10,000 DLH
Predetermined overhead rate = 
=
=$20
Manufacturing overhead applied = predetermined rate × time required
= 20 × 200
= $4,000
Therefore, manufacturing overhead of $4,000 is applied to the job.
D because if your employees don't know about anything then you will have a sloppy business