A Small Child Presents to the Pediatric Office with a Reddened

A small child presents to the pediatric office with a reddened sclera, itchy eyes, and a watery, clear discharge from the affected eye. The most likely diagnosis is

A) bacterial conjunctivitis.
B) viral conjunctivitis.
C) trachoma.
D) either bacterial conjunctivitis or trachoma; further tests are needed.
E) cannot be distinguished between bacterial or viral conjunctivitis so antibiotic treatment is given regardless.