The Answer to a Question Is [MLT ^{- 1}] $\frac { m v ^ { 2 } } { r }$

Multiple Choice

The answer to a question is [MLT ^{- 1}].The question is "What are the dimensions of

A) mr?"
B) mvr?"
C) ma?"
D) mat?"
E) $\frac { m v ^ { 2 } } { r }$ ?"