Give the Amplitude or Period as Requested $y = - 5 \sin 2 x$

Multiple Choice

Give the amplitude or period as requested.
-Amplitude of $y = - 5 \sin 2 x$

A) $\frac { \pi } { 2 }$
B) $\frac { \pi } { 5 }$
C) 5
D) $\frac { 5 } { 2 }$