Explanation:Mapping cardinality is also called as cardinality ratio. 2. An entity in A is associated with at most one entity in B, and an entity in B is associated with at most one entity in A.This is called as
A. One-to-many
B. One-to-one
C. Many-to-many
D. Many-to-one
Answer:A
Explanation:Mapping cardinality is also called as cardinality ratio. 2. An entity in A is associated with at most one entity in B, and an entity in B is associated with at most one entity in A.This is called as
A. One-to-many B. One-to-one C. Many-to-many D. Many-to-one