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) $\frac{m v^{2}}{r}$ ?'