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

Context:

Maximalist! was an ensemble formed to perform the compositions that Thierry De Mey and Peter Vermeersch wrote for the dance choreographies of Wim Vandekeybus. The music they performed mixed avant-garde jazz with minimal music; hence (by contrast) the name of the band.

Hypothesis: Jazz was mixed in.
OPT: a. Yes. b. It's impossible to say. c. No.
a.