Given Only the Following Excerpt of an E-R Model

question 39

Multiple Choice

Given only the following excerpt of an E-R model:
Which of the following is known to be true?

• A) There are more instances of ENTITY A than there are instances of ENTITY B in the user's environment.
• B) A single instance of ENTITY B may be related to many instances of ENTITY A.
• C) A single instance of ENTITY A must be related to many instances of ENTITY B.
• D) ENTITY A has a minimum cardinality of one.
• E) The degree of the relationship is "many."

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Definitions:

Neurotic Depression

A mental health condition featuring symptoms of depression that are usually less severe than major depressive disorder but include high levels of anxiety.

Conversion Reaction

A psychological response where emotional stress or conflict is converted into physical symptoms.

Simple Phobias

Excessive and irrational fears of specific objects, activities, or situations, that can lead to severe anxiety when encountered.

Primary

Describes something that is of first importance or serves as the main focus.