Oo much arousal in an athlete can lead to
a. a physical and mental state in which injury is impossible.
b. no change in his or her athletic performance.
c. increased muscle tension and attention deficits, thus decreasing performance.
d. decreased muscle tension and attention gains, thus increasing performance.

The answer would be d. most contraceptives are effective when used properly

If the line intersect than it would should how a perpendicular works.

Tachycardia is a type of heart rhythm disorder in which heart beats faster than the normal rate. in this, the upper or the lower heart chambers are faster. it then pumps less blood flow to the other parts of the body even the heart itself. in the situation, the 73 year old female needs to have an antiarrhytmic medicine or digoxin.