Could it be 100? Yes. 99? Yes. 5? Yes ... for sure that it's 100%; the only quantifier that tells ... us 100% is "all" (or every, etc ... "some" because only if some = 100% (which we would call "all ...
Logic games, when you master it you will know every answer you arrive at is correct. RC has a little too much room for interpretation to get 100% every single time.