Within an Entity-Relationship Diagram, Which of the Following Would Indicate

Multiple Choice

Within an entity-relationship diagram, which of the following would indicate that the relationship between A and B is one (A) to many (B) ?

A) An arrow drawn from rectangle B points to rectangle A.
B) A line drawn from rectangle A ends in a crow's foot at rectangle B.
C) A line with a number 1 beside it is drawn from rectangle A to rectangle B.
D) A line with a letter n beside it is drawn from a diamond to rectangle A.