If a 1:M Relationship Is Mandatory on the M Side

question 36

Multiple Choice

If a 1:M relationship is mandatory on the M side and optional on the 1 side,and if the table resulting from the 1 side has 3 records,then the table resulting from the M side cannot have less than ________ records.

• A)0
• B)1
• C)2
• D)3

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Definitions:

Community Immunity

Also known as herd immunity, it is the resistance to the spread of a contagious disease within a population that results if a sufficiently high proportion of individuals are immune to the disease, especially through vaccination.

Type A Blood

A blood group within the ABO system characterized by the presence of A antigens and anti-B antibodies in the plasma.

Antibodies

Antibodies are protein molecules produced by the immune system in response to foreign substances, helping to fight off infections.

Periodontitis

A serious gum infection that damages the soft tissue and destroys the bone that supports teeth, possibly leading to tooth loss.