Use a Calculator to Evaluate the Expression $${ } _ { 21 } \mathrm { C } _ { 4 }$$

question 62

Multiple Choice

Use a calculator to evaluate the expression.
- $${ } _ { 21 } \mathrm { C } _ { 4 }$$

• A) 5985
• B) 23,940
• C) 35,910
• D) 143,640

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Definitions:

External Stimuli

Environmental factors or inputs that affect the senses and can influence behavior, reactions, and internal physiological states of an individual.

Internal Stimuli

Signals or events that originate within an organism, triggering psychological or physiological responses.

Consciousness

The state of being aware of and able to think about one's own existence, sensations, thoughts, and environment.

Circadian Rhythm

The biological clock that cycles daily, regulating physiological and behavioral processes such as sleep-wake patterns and hormone release.