An Alternating Current Is Supplied to an Electronic Component with a Rating

An alternating current is supplied to an electronic component with a rating that the voltage across it can never, even for an instant, exceed $16 \mathrm {~V}$ What is the highest rms voltage that can be supplied to this component while staying below the voltage limit?

A) 8 $\sqrt { 2 }$ V
B) 16 $\sqrt { 2 }$ V
C) 256 V
D) 8 V