5a. Children’s World Toy Shop is an on-line toy store specializing in hand made stuffed animals. Children’s World sold 4,000 Donny the Dragon stuffed toys during April and 6,000 during May. Shipping costs for the two months were $12,000 and $16,800 respectively. Using these two months’ data, the shipping estimate the cost function is .

A. ($2 x number of toys sold) + $70,000.B. ($3 x number of toys sold) + $2,880.C. ($2.40 x number of toys sold) + $2,400.D. ($0.50 x number of toys sold) + $10,000.