Eco Strip Inc. makes a paint remover which is made up of two direct materials, X and Y. The standard costs and standard quantities are as follows. Each gallon of paint remover requires 0.3 gallons at $4.00 per gallon of material X and 0.7 gallons at $6.00 per gallon of material Y. During April, Eco Strip produced 50,000 gallons of paint remover, used 17,000 gallons at $4.25 per gallon of material X, and used 38,000 gallons at $5.90 per gallon of material Y. What are the mix and yield variances for material X for the month of April?
a. $2,000 U; $6,000 U.
b. $3,000 U; $5,000 U.
c. $10,000 U; $2,000 F.
d. $10,000 F; $18,000 U.
e. None of these.