As you grow older, an injury to your ______ may take longer to ______.

Answer :

Solution :

Heal : to become healthy again.
Heel : the back part of your foot.
In this question ‘an injury to your’ is given that means we need a body part that means ‘heel’ is correct.
So option (A) and (D) is eliminated and we need ‘heal’ in second filler.
Hence, the correct option is (C).