Simplify the Expression $\left( \frac { \mathrm { c } } { \mathrm { gf } } \right) ^ { - 1 }$

question 25

Multiple Choice

Simplify the expression. Remove all negative and zero exponents. Assume the expression is defined. $\left( \frac { \mathrm { c } } { \mathrm { gf } } \right) ^ { - 1 }$

• A) \(\frac { \mathrm { cg } } { \mathrm { f } }\)
• B) \(\frac { \mathrm { c } } { \mathrm { gf } }\)
• C) \(\frac { g } { c f }\)
• D) \(\frac { \mathrm { gf } } { \mathrm { c } }\)
• E) \(\frac { \mathrm { cg } } { \mathrm { f } }\)

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Definitions:

Blood-Brain Barrier

The blood-brain barrier is a selective semipermeable border that prevents most substances in the blood from entering the brain, thus protecting it from pathogens and toxins while allowing essential nutrients to pass through.

Cortisol

A steroid hormone in the body, often released in response to stress and used as a marker for stress levels.

Corticotropin-Releasing Hormone

A hormone involved in the stress response, stimulating the pituitary gland to release adrenocorticotropic hormone, which then promotes the production of cortisol by the adrenal glands.

Adrenocorticotropic-Releasing Hormone

A hormone produced in the hypothalamus that stimulates the release of cortisol from the adrenal gland, playing a key role in the body's response to stress.