Choose the correct sentence:
AHe used to smoke,but now he's stopped.
BHe was used to smoke,but now he's stopped.
CHe is used to smoke,but now he's stopped.
DHe used to smoking,but now he's stopped.
AHe used to smoke,but now he's stopped.
BHe was used to smoke,but now he's stopped.
CHe is used to smoke,but now he's stopped.
DHe used to smoking,but now he's stopped.