Answer: C.
multiple occurrences of the same entity type
Explanation:
In a one-to-many relationship, one record in a table can be associated with one or more records in another table. For example, each customer can have many sales orders. ... The foreign key field in the Orders table, Customer ID, is designed to allow multiple instances of the same value. A Binary Relationship is a relationship between two different Entities i.e. it is a relationship of role group of one entity with the role group of another entity.