1. The elderly individual is distinctly different from the adult
2. A fall in the cardiac ejection fraction from 55% to 35% within 2 months could be a process of normal aging.
3. “Normal aging” can be attenuated by life style modification.
4. In a healthy individual decline in the body functions due to normal aging does not cause symptoms.

Answer: The answer is (b). Any abrupt decline in physiological functions can never be due to “normal aging”. It is a known fact that the elderly individual is distinctly different from the adult. Life style modifications like good diet, good physical exercise and behavioral modifications can attenuate the process of “normal aging”. Usually the decline of the homeostatic functions of the body with aging is a gradual process. Therefore there are usually no symptoms.