Which of the Statements Apply to Infection of the Eye

Which of the statements apply to infection of the eye by Staphylococcus aureus?
1) It involves the conjunctiva.
2) It is highly contagious.
3) It is commonly known as "pinkeye."
4) It usually causes keratitis and permanent visual loss.

A) 1, 3
B) 2, 3
C) 2, 4
D) 1, 2, 3