After wresting the three Hindi heartlands from the BJP- the grand old party mobilised the voice of the opposition with a show of strength. The bus, which took the opposition leaders to the oath-taking ceremony of Ashok Gehlot in Rajasthan, was riddled with the optimism of a Mahaghatbandhan, but not without the rather strained efforts to bring everyone on board. (Twitter)

Based on that paragraph can we conclude that this sentence is true?
Gehlot took an oath.

OPT:
a). Yes
b). It's impossible to say
c). No
a).