Metlock, Inc. has a materials price standard of $2.00 per pound. Six thousand pounds of materials were purchased at $2.20 a pound. The actual quantity of materials used was 5100 pounds, although the standard quantity allowed for the output was 4900 pounds. Metlock, Inc.'s materials price variance is:_______

a. $980 U.
b. $1020 F.
c. $40 U.
d. $1020 U.