Write a Cost Function for the Problem $\$ 400 ; 10$

Multiple Choice

Write a cost function for the problem. Assume that the relationship is linear.
-Fixed cost, $\$ 400 ; 10$ items cost $\$ 2350$ to produce

A) $C(x) =390 x+400$
B) $C(x) =195 x+400$
C) $C(x) =195 x+2350$
D) $C(x) =390 x+2350$