Answer:
Option (d) is correct.
Step-by-step explanation:
Materials cost = $310
Labor cost = Labor hours × Wages per hour
= 20 hours × $11
= $220
Overhead cost = Overhead for each employee hour × Labor hours
= $17 × 20 hours
= $340
Total cost = Materials cost + Labor cost + Overhead cost
= $310 + $220 + $340
= $870
Hence, correct answer is $870.