Douglas is a resistance athlete who weighs 180 lb. according to the joint recommendations of an expert group that included the academy of nutrition and dietetics, his minimal intake of protein should be approximately g daily.

The correct requirement would be - 98 to 138 (approximately).

Explanation:

Protein helps very less to produce energy for the body in comparison to the carbohydrates and fat. Protein is digested and break down to the building blocks for different enzymes, tissues, hormones that known as amino acids for various functions.

Exercise helps in the need of the protein in athletes body, which is determined by the type of exercise and its frequency. According to the Academy of Nutrition and Dietetics resistance athletes must include 1.2 to 1.7 grams of the protein per kg of the body per day.

180 lbs = 81.64 kg × 1.2/1.7 = 98/138 gm/day (approx)

Thus, the correct answer is - 98 to 138 (approximately).