An Organization Has Created 5 IAM Users

An organization has created 5 IAM users. The organization wants to give them the same login ID but different passwords. How can the organization achieve this?

A) The organization should create each user in a separate region so that they have their own URL to login
B) The organization should create a separate login ID but give the IAM users the same alias so that each one can login with their alias
C) It is not possible to have the same login ID for multiple IAM users of the same account
D) The organization should create various groups and add each user with the same login ID to different groups. The user can login with their own group ID