Which of the Following Is a Requirement for Testing a Claim

Multiple Choice

Which of the following is a requirement for testing a claim about a population proportion?

A) The sample observations are a stratified sample.
B) The trials are dependent.
C) The conditions $n p \geq 5$ and $n q \geq 5$ are both satisfied.
D) None of the other statements are requirements for testing a claim about a population proportion.