Answer:
The correct answer is option (c) the company used more labor hours than allowed by the standards.
Step-by-step explanation:
The efficiency of direct labor difference tells that how efficiently direct labor has worked. If it is not favorable, it suggest that direct labor has used more labor hours than permitted by standard.
In this example given, the question direct labor difference or variance is unfavorable 17000U, it means that, direct labor was done inefficiently and has used 1000 hrs (21000-2000)more than normal standard practice or way.