A 17-year-old college-bound student receives a vaccine against an organism that causes meningitis. This is an example of a. secondary prevention. b. disease treatment. c. tertiary prevention. d. primary prevention.

The correct answer is option d. "primary prevention".

Explanation:

In health promotion, primary prevention are known as any activity or action that helps to prevent the development of an injury or a diseases before a person starts to suffer from it. Vaccination is a classic example of primary prevention. Other example of primary prevention is changing risky behaviors, such as having bad sleeping habits or eating junk food.

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

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