What does the likelihood ratio test (LRT) test?

What does the likelihood ratio test (LRT) test?

• A. The null that all coefficients are non-zero
• B. The alternative that all coefficients are zero
• C. The null that all non-intercept coefficients are zero against at least one non-zero
• D. The null that the intercept is zero against the alternative that the intercept is non-zero

Answer: (C)