Stream of consciousness rationale: Blisters can happen on hands. Blisters are a symptom. Blisters are painful and long-lasting.
The question and answer pair are described below.
user
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?
Options:
- calluses
- loss of oxygen
- vertigo
- ascending
- blisters
A: blisters
assistant