Elevates mood and alters perceptions; increases heart rate. One trip lasts 4-6 hours

Ecstasy

Explanation:

Ecstasy is the street (informal) name  for a version of MDMA, or 3,4 methylenedioxy-methamphetamine. Ecstasy is a synthetic drug that has hallucinogenic and stimulating properties. Hence, it can increase one's heart rate and distort perceptions.

Ecstasy is known to  promote a feeling of well-being, happiness and friendliness. it has major effects which include:

Long lasting energy,

happiness

empathy for others

Lowered inhibitions.

These effects last for about 4 -6 hours on a normal individual

having the certification could make the person more required to do a certain thing then another.this could also lead to different job offers or opportunities.

answer:

i believe the answer is d).

explanation:

i think this is because you are tearing apart the muscle, and then when you eat, the muscle re-heals, making itself even stronger.

edit: i put b) before but i meant to put d). sorry for the incorrect answer.