Which statement about the Neyman-Pearson lemma for simple hypotheses is correct?

Which statement about the Neyman-Pearson lemma for simple hypotheses is correct?

• A. It applies only to composite hypotheses.
• B. The most powerful test uses the likelihood ratio L(H0)/L(H1) ≤ k.
• C. It ignores the likelihood function.
• D. The most powerful test uses the likelihood ratio L(H1)/L(H0) ≤ k.

Answer: (B)