Answer:
When reading, the reader should address the commas by pausing just long enough to take a breath. The correct answer is b (please, pay attention because options are not in order, b is the third option given).
Step-by-step explanation:
When reading, you have to address the different punctuation marks without mentioning them, of course. In order to do this, we take pauses or read in a certain tone. In the case of the comma, we are suggested to take a short pause, just a second will be enough, a moment long enough to take a breath. In cases such as a period or the start of a new paragraph, the pauses are going to be longer. The comma and the semicolon need the shortest pauses.