Question: Which are all likely enabled by rock folding?
Choices:
text: oak trees, waterfalls, TVs
label: A
text: rivers, lightning bolts, fire
label: B
text: the Himalayas, spelunking, and valleys
label: C
text: cats, prairies, dogs, birds
label: D
Answer: C
Fact: the Himalayas were formed by rock folding