What was Silver Company's direct labor yield variance if direct labor costs for June were as follows:

Actual direct labor hours 30,000

Standard direct labor hours 31,500

Rate variance $4,500 U

Total payroll $189,000

Labor mix variance $4,225 U

A. $9,675 unfavorable

B. $5,000 favorable

C. $13,450 favorable

D. $9,225 favorable