Touchie MacFeelie's Production Function Is 0

Touchie MacFeelie's production function is 0.1J^1/2 L^3/4, where J is the number of old jokes used and L is the number of hours of cartoonists' labor.Touchie is stuck with 400 old jokes for which he paid 2 dollars each.If the wage rate for cartoonists is 5 dollars, then the total cost of producing 54 comics books is

A) 1,205 dollars.
B) 1,807.50 dollars.
C) 602.50 dollars.
D) 1,259 dollars.
E) 301.25 dollars.