During his confirmation hearing in January, he assured senators of his independence and said he would not be bullied by anyone into doing something he believes is wrong if he takes the helm of the Justice Department. Barr, however, did suggest he might not release Mueller's final report to the public, saying that in the event prosecution is declined, the findings may not be made public.

Based on that paragraph can we conclude that this sentence is true?
Mueller was cautious in his approach

Available choices:
(A). Yes;
(B). It's impossible to say;
(C). No;