The Physical Activity Guidelines for Americans, released in 2008, advise a minimum of minutes per week of moderate-intensity physical activity for adults. a. 30
b. 60
c. 90
d. 150

The correct answer is - d. 150.

Explanation:

According to the advice given by The Physical Activity Guidelines for Americans, released in 2008, To maintain substantial health benefits for public health and welfare.

The advice that for healthy adults, adults should workout for 150 minutes or hours and 30 minutes over a period of a week of moderate-intensity. For a vigorous-intensity aerobic physical activity, one should 75 minutes for a week.