prompt: Which  of the levels: A1 A2 B1 B2 C1 best describes the difficulty of text: Serena's friend began doing live Web cam shows, stripping and masturbating in from of a small video camera in the studio, her gyrations beamed to dozens of people who could, in turn, communicate with her via keyboard, telling her how to pose, how to touch herself, and so forth.
label: b2