Amy's coat is wet. since it is raining outside, her friend jack concludes that the rain and amy's wet coat must be causally related. which of the following, if true, would suggest that the two might simply be correlated?

a. amy spilled a bucket of water on her coat while she was inside.
b. jack saw amy leave the house just before it started raining.
c. jack went outside without a coat, and he got wet.
d. amy often enjoys taking long walks in the rain.