I'm not sure but i think the answer is D
<span>Because all organs in human body relate to each other somehow, we need to take care of every one of them. If any one of them goes bad, it will influence other organs.</span>
Answer: 2,200 Kcal
Explanation: An average adult requires at least 2,200 Kcal in a day for maintaining his/her weight and carrying on everyday activities. The average calorie requirement varies person to person depending on numerous factors such as person’s sex, age, height, weight, and level of physical activity. In each sex and age category, the higher limit of the range is for individuals who have active lifestyle and the lower limit of the range is for individuals who have sedentary lifestyle. The reductions in basal metabolic rate occur with aging, which reduce the calorie needs for adults as they age.
