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. Please help! Gah!