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

Context:

Mars Audiac Quintet is the third album by the band Stereolab, released in August 1994. Initial releases of the CD came with bonus two-track disk, the double vinyl album came with a 7". During the recording of the album, guitarist Sean O'Hagan left as a full-time member to form his own group, while keyboardist Katharine Gifford was added.

Hypothesis: Stereolab has released at least four albums.
Available choices:
[a]. Yes.
[b]. It's impossible to say.
[c]. No.
[b].