Question: If entity A has a one - to - many relationship was other entities, say entity B , what do we know about this relationship?

If entity A has a one-to-many relationship was other entities, say entity B, what do we know about this relationship?
A is one and entity B is one.
Entity A is one and entity B is many.
Entity A is many and entity B is one.
Entity A is many and entity B is many.
If entity A has a one-to-many relationship was other entities, say

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