A Sound of 40 Decibels Is

Multiple Choice

A sound of 40 decibels is

A) twice as intense as a sound of 20 decibels.
B) four times as intense as a sound of 20 decibels.
C) 10 times as intense as a sound of 20 decibels.
D) 100 times as intense as a sound of 20 decibels.
E) 1000 times as intense as a sound of 20 decibels.