Which batch size scenario is most likely to resemble the behavior of full Batch Gradient Descent in Mini$-$Batch Gradient Descent?

A$)$ A very small batch size, such as $1$ or $2.$

B$)$ A medium batch size, like $32$ or $64.$

C$)$ A batch size equal to the total number of training samples.

D$)$ Any batch size as long as it is consistent throughout training.