Given Only the Following Excerpt of an E-R Model

question 71

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:

Acuity

Refers to the sharpness or clearness of vision or hearing.

Fecal

Pertaining to feces.

Heartburn

A burning sensation beneath the breastbone, usually associated with indigestion.

Laxative

A substance used to stimulate bowel movements, often used to treat constipation.