According to the Joint Recommendations of the Academy of Nutrition

According to the joint recommendations of the Academy of Nutrition and Dietetics,Dietitians of Canada,and the American College of Sports Medicine,a dietary protein intake of ________ may be necessary for athletes engaged in regular moderate- and high-intensity physical activity.

A) 1) 2 to 2.0 grams/kg body weight/day
B) 0) 6 to 1.1 grams/kg body weight/day
C) 1) 8 to 2.2 grams/kg body weight/day
D) at least 2.0 grams/kg body weight/day