A School Nurse at a Public Elementary School Notes a Number

A school nurse at a public elementary school notes a number of students presenting to his office with similar symptoms. The students are complaining of itchy, watery eyes with white, milky drainage. They appear to have red and inflamed sclera and conjunctiva. Some students report the symptoms in both eyes, while others are experiencing it in one eye. A number of the students report that they woke up the feeling that their eyes were "glued-shut."
-Based on the reported symptoms and clinical findings,which of the following is the most likely diagnosis?  

A) Keratitis
B) Neonatal conjunctivitis
C) Bacterial conjunctivitis
D) Viral conjunctivitis
E) The discharge must be cultured to make a diagnosis.