Answer:
No C is the correct answer.
Answer:
The group that received the placebo is the control group.
Explanation:
This group is known as the control group.
Speed is the ability to perform a particular movement very rapidly
Cardiovascular System
In addition, the blood vessels that direct blood to the large muscles and the heart dilate, thereby increasing the amount of blood pumped to these parts of the body and elevating blood pressure. ... This long-term ongoing stress can increase the risk for hypertension, heart attack or stroke.
