What Is a Primary Key

question 41

Multiple Choice

What is a primary key?

• A) A field (or group of fields) that uniquely identifies a given record in a table.
• B) A primary key of one table that appears as an attribute in another table and acts to provide a logical relationship between the two tables.
• C) Characteristics or properties of an entity.
• D) A field (or group of fields) that uniquely identifies a given attribute in a table.

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Definitions:

Extrusion Reflex

A reflex in infants where they use their tongue to push out solids or foods they are not yet ready to swallow.

Solid Foods

Food items that are not liquid, introduced to infants' diets around 6 months of age to meet nutritional needs beyond breastfeeding or formula.

Gross Motor Development

The progression of physical abilities in children and infants, including crawling, walking, jumping, and balance, using large muscles.