Consider the symbols shown in the exhibit. Which of the following correctly identifies these
symbols when used in an entity-relationship (ER) diagram?
A.
1 = attribute, 2 = entity, 3 = relationship
B.
1 = entity, 2 = relationship, 3 = attribute
C.
1 = relationship, 2 = entity, 3 = attribute
D.
1 = relationship, 2 = attribute, 3 = entity