Which of the Following Best Represents a Unique Identifier Field

question 6

Multiple Choice

Which of the following best represents a unique identifier field or primary key?

• A)zip code
• B)customer last name
• C)product type
• D)product ID

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Definitions:

Middle Age

A period of adult life typically ranging from about 45 to 65, often characterized by stability in career and relationships, but also challenges such as health issues and caregiving responsibilities.

Middle-Aged

This term refers to the period in a person's life typically ranging from about 45 to 65 years old, characterized by both physical and psychological changes.

Emotional Support

The provision of empathy, concern, affection, and encouragement to someone, especially during times of stress or difficulty.

Talking Over

The act of discussing or deliberating a topic extensively, often to reach a decision or to understand different perspectives.