A strawberry farmer in Poteet knows that 1/8 of his strawberries are typically not fit to sell at the market (either because they went bad or are too unusually shaped). The farmer takes a random sample of 156 strawberries to inspect for the upcoming farmer's market and finds that 24 are unfit to sell.

What is the standard deviation of the sampling distribution for the sample proportion?

A) 0.0008 B) 0.0022 C) 0.0007 D) 0.0289 E) 0.0265

Please leave an explanation on why it is correct.