Question: The organization Red Delicious-Crappy Apples (RDCA) distributes at farmer's markets a variety of brochures on the virtues of various varieties of apples and, of course, on the vices of the hated Red Delicious apple. Passersby are invited to take as many different brochures as they want, but no more than one of each kind. If there are n different brochures available, how many selections of brochures might a passerby take? (Note: RDCA was a real organization in the mid-1990s but did not do significant outreach. It had at least three members.)