The pusillanimous politician's lack of courage and conviction reeked_____ opportunism and cowardice, causing his supporters _____ lose faith in his ability to lead.

The pusillanimous politician's lack of courage and conviction reeked_ opportunism and cowardice, causing his supporters _ lose faith in his ability to lead.

off, of

of, to

in, in

away, to

The phrase "reeked of" means to strongly suggest or be full of something,

while "cause to lose" is a common construction when referring to making someone lose something, in this case, faith.