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 $y = \frac { 262,500 } { x + 525 }$ . What is the cost per ton for $x = 400$ ?

A) $113,513.51
B) $131.25
C) $283.78
D) $200,000.00