Answer:
D. $3.40
Explanation:
The computation of the predetermined overhead rate is shown below:
Predetermined overhead rate is
= Estimated manufacturing overhead ÷ estimated machine hours
= ($2,000 + $400 + $1,000) ÷ (1,000 machine hours)
= $3,400 ÷ $1,000 machine hours
= $3.40 per hour