Here's a question and a few possible answers: 

Q: When james was climbing he experiences a couple of symptoms.  The most painful and long lasting was on his hands.   What  might have happened to him?
Possible A: calluses, loss of oxygen, vertigo, ascending, blisters

Why is "blisters" an answer aligned with human common sense? 


he experiences a couple of symptoms. the most painful and long lasting was on his hands blisters.