It depends, sometimes its to provide clarity for the reader, and sometimes its to make things less clearer.
Please provide the sentences.
Answer:
A.
Explanation:
A because Ms. Smith is a direct message from the speaker and you are supposed to put a comma after a direct message.
<h3>Hope it helps! :)</h3>
Explanation:
AYYYYYYYYYYYYYYYYYYYYYYYYYYYY
Computer technology has fundamentally altered the way people comminuted everybody
Explanation: