The answer is B. Stimulants. Amphetamines is a central nervous system stimulants that affects the chemicals in the brain and nerves that contributes hyper activity or Increase of energy in the body and the impulse control in the body
Answer:
To check your pulse at your wrist, place two fingers between the bone and the tendon over your radial artery — which is located on the thumb side of your wrist. When you feel your pulse, count the number of beats in 15 seconds. Multiply this number by four to calculate your beats per minute.
IM PRETTY SURE ITS LEARNING.(sorry for caps)