The idiom "Much ado about nothing" means a great deal of fuss or commotion about something insignificant.
It is also the title of a famous play by William Shakespeare, but as an idiom, it refers to exaggerated drama or concern over a trivial issue.
Let’s review the options:
(A) To make a noise – Too vague.
(B) To make a fuss over a small matter – Correct meaning.
(C) A play by Shaw – Incorrect; it's by Shakespeare.
(D) Talk about nothing – Incomplete and less accurate.