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

The correct answer will be Option-A

Explanation:

Arousal in human energy plays an important role in athletics as it increases or boosts up the confidence level to do work.

But over-arousal or too-much arousal in athletes shows the negative symptoms like it causes the rapid heartbeat, anxiety, nervousness, shallow breathing and the muscle tension. The muscle tension leads to problems while focusing and cause attention deficit and decreases the output or performance.

Thus, option-A is the correct answer.

b and d are your answers i just answered this question

answer(b) keep oxygenated and deoxygenated blood separate;