What is the most likely diagnosis for a patient presenting with right lower quadrant (RLQ) pain, fever, and a history of pain migrating from the middle to the right side of the abdomen, more common in ages 10-30, and with males being affected more than females?
A) Diverticulitis
B) Appendicitis
C) Irritable Bowel Syndrome (IBS)
D) Crohn's Disease