Someone who takes stimulants is risking which of the following outcomes?

amnesia
relaxed
excessive calm
heart failure

Heart failure is risk that someone is taking stimulants in his or her body. Stimulants are chemicals that can add to your alertness and too much of it can damage your nervous system. When your nervous system will react to the high level of stimulants, you will get nervous that will cause for your heart to pump more blood. When your hear pumps more blood than the oxygen intake in the lungs, it will cause a hear attack or hear failure.

The answer will be d for the question

Pickling is the process that uses a vinegar solution to preserve foods.