You are answering a USMLE-style medical question. Question: A 24-year-old married woman presents to the emergency department with severe abdominal pain since last night. She also complains of scant vaginal bleeding. She says she visited a physician last year who said she had a pelvic infection, but she was never treated because of insurance issues. She also says her period has been delayed this month. She is afebrile. The pulse is 124/min and the blood pressure is 100/70 mm Hg. On examination, her abdomen is distended and tender. A pregnancy test was positive. A complication of infection with which of the following organisms most likely led to this patient’s condition? Options: A) Candida albicans B) Neisseria gonorrhoeae C) Chlamydia trachomatis D) Haemophilus influenzae Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.