“It could be snowing, or raining."

"It could be snowing or raining"!
B.
"It could be snowing, or raining.
C.
"It could be snowing or raining."
D.
"It could be snowing, or raining".

What is the question?

The correct sentence is:

D. "It could be snowing, or raining".

The correct punctuation for the given sentence is:

"It could be snowing, or raining."

In this case, the sentence is expressing two possibilities: snowing and raining. To correctly punctuate this sentence, a comma is placed before the coordinating conjunction "or" to separate the two options. The sentence would be read as: It could be snowing or it could be raining.