<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 28-year-old primigravid woman at 31 weeks gestation comes to the physician because of fever, myalgia, abdominal pain, nausea, and diarrhea for 3 days. Her pregnancy has been uncomplicated. Her only medication is a prenatal vitamin. Her temperature is 39.4C 102.9F. Physical examination shows diffuse abdominal pain. Blood cultures incubated at 4C 39.2F grow a gram-positive, catalase-positive organism. The pathogen responsible for this patients presentation was most likely transmitted via which of the following modes?? A: Blood transfusion, B: Sexual contact, C: Consumption of soft cheese, D: Ingestion of cat feces, E: Drinking contaminated water,  <response>: This is a medical case scenario question asking about the likely mode of transmission of a pathogen in a pregnant woman with fever, myalgia, abdominal pain, nausea, and diarrhea. The clues provided are that she has a high fever, abdominal pain, and blood cultures grew a gram-positive, catalase-positive organism. Based on the clinical presentation and the organism characteristics, this is most likely listeriosis, caused by Listeria monocytogenes infection. Listeria is a gram-positive, catalase-positive bacterium that can cause fever, abdominal pain, and diarrhea especially in pregnant women. The answer choices list different potential modes of transmission. Listeria is typically transmitted by ingestion of contaminated food, especially soft cheeses, deli meats, and unpasteurized dairy products. Therefore, the likely mode of transmission in this case is consumption of contaminated soft cheese.C: Consumption of soft cheese 