For the Following Vector Field, Identify Which One of the Following

Multiple Choice

For the following vector field, identify which one of the following formulas could represent it. The scales in the x and y directions are the same.No reasons need be given.

A) $\vec { i } + x \vec { j }$
B) $x ^ { 2 } \vec { i } + x y \vec { j }$
C) $y \vec { i }$
D) $x \vec { i } + y \vec { j }$