Which sentence does not contain any errors in comma usage? A. The table was delivered in two, cardboard boxes. B. Sally has a new blue bedspread. C. It is, an octagonal, wooden table. D. The old, and dusty table had cracked broken legs.

The correct answer is B. Sally has a new blue bedspread.

Why not the other ones?

A. The table was delivered in two, cardboard boxes. - this sentence should not have a coma between 'two' and 'cardboard'

C. It is, an octagonal, wooden table. - we don't put a comma after verb - in this case after 'is'

D. The old, and dusty table had cracked broken legs. - there is no need to put a comma before a conjunction word (i this case - and)