Which sentence uses negative words correctly?

A

Nobody showed up for any of those contests.

B

He's never beaten nobody at the game of chess.

C

There weren't no more cans of black beans left on the shelves.

D

Her flowers were not protected none from the bad weather.

Verified Answer :

A.
The other sentences use double negatives and simply make no sense.
Possible corrections:
A - No errors!
B - 
He's beaten nobody at the game of chess.
C - 
There weren't any cans of black beans left on the shelves.
D - 
Her flowers were not protected from the bad weather.