Question

If one exists, a data modeler uses a ____ as the primary key of the entity being modeled. select one:

a. foreign key
b. combination key
c. surrogate key
d. natural identifier

Answer 1

your answer would be D. natural identifier 

Answer 2

The correct answer is letter "D": natural identifier.

Step-by-step explanation:

Natural identifiers are pieces of real information from people or entities that are registered in a database. This information is considered unique such as social security numbers, e-mail addresses, or any other identification that only one individual must possess. While creating or identifying a data modeler natural identifiers are used as the main resource of those modelers being set up.