This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Ophthalmology
A 63-year-old woman presents with c/o of pain in her right eye. On examination the pupil is dilated with a hazy cornea. Most likely diagnosis? 
Select and explain. 
A. Scleritis, B. Anterior uveitis, C. Conjunctivitis, D. Acute angle closure glaucoma
D: Acute angle closure glaucoma
Answer: D: Acute angle closure glaucoma 
Explanation: Acute angle closure glaucoma- Severe pain (may be ocular or headache.), decreased visual acuity, patient sees haloes, semi-dilated pupil, hazy cornea