This site should help you decide the best answer.
http://www.enotes.com/birds
In The Birds, what is the weather like during the autumn before the attack, and what does this signify?
The cold autumn signifies that nature is frequently harsh and dangerous.
The cold autumn signifies that winter follows autumn.
The mild autumn signifies that nature can turn dangerous unexpectedly.
The mild autumn signifies that nature is frequently harmless and gentle.
3 answers
i am thinking C
I agree. It must be C.