I think A is correct but i am not totally positive. Please forgive me if i am wrong. if i am incorrect please find a way to contact me and i will research it more thoroughly to find an answer.
Answer:
On June 10,1940 US president Franklin D Roosevelt gave his famous speech "Stab in the Back" at University of Virginia.
On the speech He mentioned that the hand that held the dagger has struck into it's neighbor's back. Here he referred Italy and Mussolini as the hand which held dagger and France was the neighbor.
Because on June 10,1940 Italy declared war against France and Britain and joined to Germany on axis power. Mussolini said Italy was joining war against France and Britain as for keeping promise to Germany.
Roosevelt mentioned this incident for in his speech as the hand held dagger has struck into France's back.
Moreover, in this speech, He made a proclamation about removing America's neutral position in war and soon declared the Mediterranean see as a combat zone.
Explanation:
Answer: I would have to say, it would be the cold.
If an asteroid hit them, wouldn't they be crushed entirely?
Ice doesn't crush anything.
So, that's why the cold is the correct answer..
Explanation: Just simple knowledge. Hope this helps you out! :D