Which of the Following Is Newton's Second Law of Motion $F ( t ) = m \| \mathbf { v } ( t ) \|$

Multiple Choice

Which of the following is Newton's Second Law of Motion?

A) $F ( t ) = m \| \mathbf { v } ( t ) \|$
B) $F ( t ) = m \| \mathbf { a } ( t ) \|$
C) $\mathbf { F } ( t ) = m \| \mathbf { a } ( t ) \|$
D) $\mathbf { F } ( t ) = m \| \mathbf { v } ( t ) \|$
E) $F ( t ) = m \left\| \mathbf { a } ^ { \prime } ( t ) \right\|$