An 82-year-old woman has been bedridden since ...
Carboxylation of precursor proteins
So factors II, VII, IX, and X are precursor proteins? GTFO
Protein C and S are ANTI-thrombotic, so although Warfarin does decrease them, they wouldn't decrease the patient's risk for thrombosis
the question ask "suppression" of which one will decrease risk of thrombosis
if you suppress C and S which and anti-thrombotic you get thrombotic