This question has been absolutely KILLING me because I've checked the answers some 40 times and I still can't get it right.

These are all the combinations and lengths I've gone through..

ABC
ACG
ABCG
ABCEG
BCG
CG

I know:
A is correct
B is incorrect
C is correct
D is incorrect
E is incorrect, right? The particles originated from the solar winds.
F is incorrect. The plates are moving closer together, that's how the Himalayas were formed.
G is correct.