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

Context:

Nashville West was a short-lived American country rock quartet that was briefly together in the late 1960s. The group comprised multi-instrumentalist Gene Parsons, guitarist Clarence White, singer-guitarist-fiddler Gib Guilbeau and bassist Wayne Moore. Parsons and White left the band to join The Byrds while Guilbeau and Parsons later joined the Flying Burrito Brothers.

Hypothesis: Nashville West was on the radio.
OPT:
 (a). Yes.
 (b). It's impossible to say.
 (c). No.
(b).