Find Two Non-Negative Numbers X and Y Whose Sum Is $\frac { 14 } { 3 }$

Multiple Choice

Find two non-negative numbers x and y whose sum is 14 and are such that the xy² is as large as possible.

A) 7 and 7
B) $\frac { 14 } { 3 }$ and $\frac { 28 } { 3 }$
C) 1 and 13
D) 14 and 28