Right! Like @ENTJ said, MSS questions you're using the stimulus to support the answer choices, and in the justify questions you're using the answer choices to support the stimulus.
Quick aside, I love lululemon hoodies, they're my jam. Buuuuuut maybe now I can justify to the wifey that I need a lulu sweater because there's the possibility that a hoodie is not aloud during the test! Wouldn't want to take the risk! :P