Can we draw the following hypothesis from the context (see options)?

Context:

This is a list of Japanese idols; a type of celebrity in Japan. The word "idol" is almost always used to refer to a young woman, although there a significant number of male idols. The following list includes both female and male idols as well as both solo idols and idol groups.

Hypothesis: Idol groups perform dance routines on stage in Japan.
Available options:
[a]. Yes.
[b]. It's impossible to say.
[c]. No.
[b].