In the reaction A + B + C + D, what are the products?
O
A. A and C
B. A, B, C, and D
C. C and D
O
D. A and B

Sorry; this looks like some specific point from class or your book. I can think of each one and create a synthesis, but that isn’t what this is.

Explanation:

if the temperature drops and becomes cool

then the atmosphere can be freezing as the water vapor in the air is at maximum (100%) and can be severely cold

also can be snowing lightly as the moisture in the air will start to solidify

and btw this is not chemistry but