Find the Period and Amplitude $\frac { 1 } { 7 }$

Multiple Choice

Find the period and amplitude. ​
Y = -7 sin x
​

A) Period: π;Amplitude: -7
B) Period: π;Amplitude: $\frac { 1 } { 7 }$
C) Period: 2π;Amplitude: 7
D) Period: 2π;Amplitude: $- \frac { 1 } { 7 }$
E) Period: 2π;Amplitude: 1