Given Functions F and G, Perform the Indicated Operations $C ( x )$

Given functions f and g, perform the indicated operations.
-A firm is considering a new product. The accounting department estimates that the total cost, $C ( x )$ , of producing $x$ units will be
$$C ( x ) = 100 x + 7700$$
The sales department estimates that the revenue, $R ( x )$ , from selling $x$ units will be
$$R ( x ) = 110 x \text {, }$$
but that no more than 875 units can be sold at that price. Find and interpret $( R - C ) ( 875 )$ .

A) $\$ 1050$ profit, income exceeds cost
It is worth it to develop product.
B) $- \$ 1050$ loss, cost exceeds income
It is not worth it to develop product.
C) $\$ 191,450$ profit, income exceeds cost
It is worth it to develop product.
D) $\$ 1645$ profit, income exceeds cost
It is worth it to develop product.