For the Function $x ^ { 2 } \sqrt { 4 + x y }$

Multiple Choice

For the function $x ^ { 2 } \sqrt { 4 + x y }$
Find $p ( 3,13 )$ .

Express the answer as a decimal rounded to four decimal places.

A) 11.3578
B) 19.6723
C) 27.3578
D) 56.2050
E) 59.0169