Please use the figure below to answer the following two questions.
FIGURE 13-1

-Referring to Figure 13-1, which of the following is the primary key?
A) Contact ID
B) First Name
C) Last Name
D) Company

Question

Please use the figure below to answer the following two questions.
FIGURE 13-1
 
-Referring to Figure 13-1, which of the following is the primary key?
A) Contact ID 
B) First Name 
C) Last Name 
D) Company

Quizplus · Accepted Answer

The primary key in a database is a unique identifier for each record. "Contact ID" is typically used as a primary key because it can uniquely identify each contact, unlike First Name, Last Name, or Company, which could have duplicates.

Please Use the Figure Below to Answer the Following Two