'You had better see a doctor if the sore throat does not clear up,' she said to me.

A. She reminded me of seeing a doctor if the sore throat did not clear up.

B. She ordered me to see a doctor if the sore throat did not clear up.

C. She insisted that I see a doctor unless the sore throat did not clear up.

D. She suggested that I see a doctor if the sore throat did not clear up.