A Deficiency of Which of the Following Vitamins Is the Leading

question 1

Multiple Choice

A deficiency of which of the following vitamins is the leading cause of blindness in young children around the world?

• A) vitamin K
• B) vitamin B₂
• C) vitamin B₁₂
• D) vitamin A

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Definitions:

Down Syndrome

A genetic disorder caused by the presence of an extra 21st chromosome, leading to developmental and physical characteristics.

Middle Adulthood

A stage in the lifespan, typically from about ages 40 to 65, characterized by personal and professional growth, awareness of mortality, and preparation for late life.

Older Adulthood

A stage of life typically associated with retirement, marked by changes in physical health, cognitive function, and social roles.

Childhood

The stage of life that spans from infancy to puberty, characterized by growth, exploration, and learning.