As a General Rule,the Normal Distribution Is Used to Approximate $\pi$

Multiple Choice

As a general rule,the normal distribution is used to approximate the sampling distribution of the sample proportion only if:

A) the sample size n is greater than or equal to 30.
B) the population proportionis $\pi$ close to 0.50.
C) the underlying population is normal.
D) n $\pi$ and n(1- $\pi$ ) are both greater than or equal to 5.