Q: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
The reversible derivatization of these compounds and separation of their functionalized intermediates is the Bingel-retro strategy. Their crystals can undergo exohedral (*) alkali-metal doping and when they enclose metal atoms they are endohedral. They can form from laser vaporization of graphite rods and often consist of pentagons and hexagons forming cages and planar sheets such as graphene. For 10 points, name this family of carbon allotropes that include nanotubes and buckyballs.
A:
Science