The release of epinephrine into the bloodstream is most likely to

A) lower blood sugar.
B) lower blood pressure.
C) stimulate digestion.
D) accelerate heartbeat.

Epinephrine

A hormone and a neurotransmitter also known as adrenaline, which is released in response to stress and works by increasing heart rate, contracting blood vessels, and dilating air passages.

Bloodstream

The flowing body fluid that carries oxygen, nutrients, and waste products to and away from cells within an organism, primarily consisting of plasma, red and white blood cells, and platelets.

Accelerate Heartbeat

The increase in the speed of the heart rate.