Respuesta :
The comma is used to separate ideas in a sentence. The correctly punctuated sentence from the list is;
- B. School began on a cold, September morning.
The comma was here used to separate the two adjectives that qualified the "morning." The morning was cold and was a day in September.
Given this, just one comma will be used to separate the first adjective from the second.
Therefore, option B is right.
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