The client is receiving an eye drop and an eye ointment to the right eye.. Administer the eye drop first, followed by the eye ointment

The client is receiving an eye drop and an eye ointment to the right eye. The nurse should:
a) Administer the eye drop first, followed by the eye ointment.***
b) Administer the eye ointment first, followed by the eye drop.
c) Administer the eye drop, wait 10 minutes, and administer the eye ointment.
d) Administer the eye ointment, wait 10 minutes, and administer the eye drop.