Find a Mathematical Model Representing the Statement $\frac { 3 } { 2 }$

Multiple Choice

Find a mathematical model representing the statement.(Determine the constant of proportionality. ) ​
P varies directly as x and inversely as the square of y.(P = $\frac { 3 } { 2 }$ when x = 25 and y = 10. )
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A) $P = \frac { x y ^ { 2 } } { 6 }$
B) $P = \frac { 6 x } { y }$
C) $P = \frac { 6 x } { y ^ { 2 } }$
D) $P = \frac { 6 y ^ { 2 } } { x }$
E) $P = 6 x y ^ { 2 }$