I think the answer is low wages, long hours, and working conditions.
I could be wrong and I’m sorry about that !!
Answer:
Ice cream truck scenario 1
UCS: ice cream truck song
UCR: craving ice cream
CS: song from truck
CR: mouth waters
Green foam ball scenario 2
UCS: green foam ball
UCR: getting ball thrown at her
CS: seeing a green ball
CR: flinching
Banana scenario 3
UCS: banana
UCR: getting really sick and vomiting
CS: banana
CR: feeling nauseous
Hawaiian shirt scenario 4
UCS: math teacher wearing a Hawaiian shirt
UCR: either gets anxiety or pop quiz
CS: seeing any Hawaiian shirt
CR: feeling anxious
"switch" or "case statement"
Usually the reason is D. It can make us biased, I don't see any other option making sense