The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 13-year-old boy is brought to the emergency department by his mother because of a 6-hour history of severe eye pain and blurry vision. He wears soft contact lenses and has not removed them for 2 days. Ophthalmologic examination shows a deep corneal ulcer, severe conjunctival injection, and purulent discharge on the right. Treatment with topical ciprofloxacin is initiated. A culture of the ocular discharge is most likely to show which of the following?   (A) Gram-negative, non-maltose fermenting diplococci   (B) Gram-negative, lactose-fermenting bacilli   (C) Gram-negative, oxidase-positive bacilli   (D) Gram-positive, optochin-sensitive diplococci "
['(C) Gram-negative, oxidase-positive bacilli <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Gram-negative, non-maltose fermenting diplococci \n (B) Gram-negative, lactose-fermenting bacilli \n (C) Gram-negative, oxidase-positive bacilli \n (D) Gram-positive, optochin-sensitive diplococci\n" <> possible answers', '  A 13-year-old boy is brought to the emergency department by his mother because of a 6-hour history of severe eye pain and blurry vision. He wears soft contact lenses and has not removed them for 2 days. Ophthalmologic examination shows a deep corneal ulcer, severe conjunctival injection, and purulent discharge on the right. Treatment with topical ciprofloxacin is initiated. A culture of the ocular discharge is most likely to show which of the following? <> context@']