In other math, what does the term "Group Isomorphism" refer to$?$

A$)$ A bijective function preserving only addition between mathematical groups.

B$)$ A function preserving the group operation and the order of elements between mathematical groups.

C$)$ An injective function preserving only multiplication between mathematical groups.

D$)$ A function that only considers finite groups. Posting this question $4$th time everytime AI answer will give you dislike if agin recieve the AI generated answer.