Answer:
d.
Step-by-step explanation:
Conjunctivitis is an eye infection that occurs when the conjunctiva becomes inflamed or irritated. This can be caused by a viral infection, bacterial infection or an allergy. The conjunctiva is that part of the eye that covers the inner surface of the eyelid and the front surface of the eye that is visible. It is made up of a thin membrane which is transparent. The inflammation of this conjunctiva is what results into conjunctivitis.
Conjunctivitis is a common eye disease that is contagious and affects children the most. It is often called “pink eye”. It presents symptoms such as itching and redness of the eye. The use of eye drop is one of the ways of treating this infection.