Which of the following best identifies the most striking detail about Jay Gatsby when Nick, the narrator, first meets him?
A. Gatsby's charismatic smile has a profound effect on Nick and makes him feel special.
B. Gatsby wasn't the flowery middle-aged man that Nick was expecting him to be.
C. They had both served in the First Division of the U.S. Army and fought in France during World War II.
D. Gatsby didn't bother inviting any of the other guests-only Nick received an invitation.