Which one of the following sentences is punctuated correctly, using no unnecessary commas? A. open double quoteI wonder if the radio is too loud, close double quote she said. B. Yes I can give you a ride home, after school today. C. All new club members, must check in before the meeting. D. The rowdy audience frustrated the performers, until the show ended.

A). Open double quote I wonder if the radio is too loud, close double quote she said.

Explanation:

As per the question, option A i.e. 'open double quote I wonder if the radio is too loud,close double quote she said' demonstrate the sentence that uses the comma appropriately to mark the pause between the introductory clause and the main clause. The other options are incorrect as they either do not involve a necessary comma(in option B after the interjection 'Yes') or unnecessarily employs a comma(In option C where comma is functioning to separate the subject and the verb and in option D where comma is placed unnecessarily prior to the dependent clause). Thus, option A is the correct answer.