Assume the following: The standard price per pound is $$2\mathrm{.}00.$ The standard quantity of pounds allowed per unit of finished goods is $4$ pounds. The actual quantity of materials purchased and used in production is $50,300$ pounds. The actual purchase price per pound of materials was $$2\mathrm{.}25.$ The company produced $13,000$ units of finished goods during the period.What is the materials quantity variance?

A$.$ $$3,400$ U

B$.$ $$3,825$ F

C$.$ $$3,400$ F

D$.$ $$3\mathrm{.}825$ U