If you know the expected value is $500$ and the standard deviation is $12,$ then which of the following can you say with approximately a $95$ percent confidence rating?

A The activity will take from $494$ to $506$ days.

B The activity will take from $476$ to $524$ days.

The activity will take from $488$ to $512$ days.

D The activity will take from $464$ to $536$ days.