Correct Answer: Postganglionic fiber is cholinergic. Have a nice day!
Explanation:
How Age and Exercise Affect Your Max Heart Rate. The relationship between the heart and exercise has been studied for more than six decades and the research is clear: Max heart rate—the highest heart rate you can safely hit during exercise—decreases with age regardless of lifestyle or level of fitness.
The correct answer is A.
She is being honest and direct in this response to a difficult situation. By responding in this way she is letting her friends know exactly how she feels about the situation without being angry or harsh or mean, just direct. With any luck her friends will now understand and stop pressurizing her.