The correct answer is
A: Letterman was one of the presenters at a recent event at Lincoln Center benefiting children with cancer. He told the audience about a drive he took with Harry from their home in upstate New York to Manhattan during a huge snow storm. Harry complained that he needed to use the bathroom. Explained Letterman, “Having to go to the bathroom at that level we’ve all experienced, he did so while we were inching along in traffic in a blinding blizzard—in my coffee thermos. That’s when I said to him, ‘Son, you don’t need a bar mitzvah. Today, you are a man.’ ”