Which of the Following Statements About Database Tables and REA

question 8

Multiple Choice

Which of the following statements about database tables and REA models is most true?

• A)Every box in a REA model requires the creation of exactly one table.
• B)Cardinalities help ensure that database tables are in third normal form.
• C)Both every box in a REA model requires the creation of exactly one table and cardinalities help ensure that database tables are in third normal form are true.
• D)Neither every box in a REA model requires the creation of exactly one table nor cardinalities help ensure that database tables are in third normal form is true.

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Definitions:

Action Potential

Change in membrane potential in an excitable tissue that acts as an electric signal and is propagated in an all-or-none fashion.

Atria Contract

refers to the phase in the cardiac cycle when the atria (upper chambers of the heart) contract to push blood into the ventricles.

Plateau Phase

Prolongation of the depolarization phase of a cardiac muscle cell membrane; results in a prolonged refractory period.

Cardiac Muscle Cell

Cardiac muscle cell, also known as a cardiomyocyte, is a specialized type of muscle cell found in the heart that contracts to pump blood throughout the body.