Alcohol does each of the following except
a. slow reflexes.
c. impair judgment.
b. stimulate heart rate.
d. disrupt coordination.

The answer is letter C, it stimulates the heart rate. 

Alcohol does not stimulate the heart rate rather, it does the exact opposite. Alcohol is known to induce side effects in the body that impair judgment in individuals when taken in high amounts. It dilates the nerves and veins causing the heart to pump at a slower and relaxed pace. Usually, archers use alcohol to calm their nerves in order to get the right target during their competitions. 

Fun fact, It is actually one of the major causes of car accidents all over the world.

Well if you pick a machine to work on and that's gonna be your exercise if you don't stick to that machine your muscle strength your muscle mass rather will change because you haven't been doing it you change something in your exercise routine which changes your body's form of dealing with things for example you might become weaker or stronger depending on what kind of exercises you do in whether or not the machine you picked actually your muscles grow.