A 9-year-old boy presents with weight loss, blood-streaked stools, and abdominal pain. He has also been having diarrhea and anal itching. His physical exam reveals a temp of 37.2°C (99° F), HR of 85, and BP of 111/67. His abdominal pain is 6/10 and he exhibits some voluntary guarding. The patient enjoys playing in the neighborhood park doing things such as building forts, digging up “treasures” and swinging. Which of the following is an infectious pathology that could be causing this patient’s symptoms? A. Trichinosis B. Whipworm C. Strongyloides D. Muchausen’s by proxy