In which one of the following sentence is the comma correctly placed?The sky is blue, the clouds are white. The sky, is blue the clouds are white.

In which one of the following sentence is the comma correctly placed?The sky is blue, the clouds are white. The sky, is blue the clouds are white.

Explanation

A comma is correctly placed to separate two independent clauses in a compound sentence.

The comma helps to clarify that these are two related but separate ideas.