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

Multiple Choice

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

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