―”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.