If you answer this you shall get a cookie and BRAINLEST (only if it’s correct tho) Which sentence has an error in noun agreement?

A)
The President promised to provide answers to each question the reporters
asked.
B)
Leo knew that all four of his dogs would fight all night to protect their
bones.
I don't know where I'm going to get the money to replace all four tires on
my truck.
D
The leaves on the oak tree in the backyard still are green--even though it's
December