Tc big book test 1

Not wishing to appear -------, the junior member of
the research group refrained from ------- any criticism of the senior members’ plan for dividing up
responsibility for the entire project.
(A) reluctant … evaluating
(B) inquisitive … offering
(C) presumptuous … venturing
(D) censorious … undercutting
(E) moralistic … observing

How to choose between B & C, Inquisitive also means being Nosy so B also good to me and C was definitely good but I paralyzed which one to go for