Solve the Problem $y$ , to Build an Oil Platform Of $x$

Multiple Choice

Solve the problem. Round to two decimal places unless otherwise indicated.
-Suppose the cost per ton, $y$ , to build an oil platform of $x$ thousand tons is approximated by $y =$ $\frac { 212,500 } { x + 425 }$ . What is the cost per ton for $x = 400 ?$

A) $\$ 200,000.00$
B) $\$ 257.58$
C) $\$ 106.25$
D) $\$ 103,030.30$