Clark Company manufactures a product with a standard direct labor cost of two hours at $$18\mathrm{.}00$ per hour. During July, $2,000$ units were produced using $4,200$ hours at $$18\mathrm{.}30$ per hour. The labor price variance was

A$)$ $$4,860F.$

B$)$ $$1,260U.$

C$)$ $$4,860U.$

D$)$ $$3,600$