What are use cases for a Parallel Gateway?

What are use cases for a Parallel Gateway?

Note: There are 2 correct answers to this question.
A . Assign decisions to all responsible parties.
B . Ensure that all tasks are completed before proceeding with the next.
C . Ensure that at least one task is completed before proceeding with the next.
D . Assign different tasks at the same time.

Answer: B D