Answer :
Final answer:
Barry, a 20-year-old man weighing 70 kg, has an RDA for protein of 56 grams per day, calculated based on 0.8 g/kg of body weight.
Explanation:
The question pertains to calculating the Recommended Dietary Allowance (RDA) for protein based on a 20-year-old man named Barry who weighs 70 kg and is not an athlete. The RDA for protein for an adult is 0.8 grams per kilogram of body weight. Therefore, for Barry, the calculation would be as follows: 70 kg × 0.8 g/kg = 56 grams of protein per day. Based on this calculation, the answer to the question is (b) 56 grams.
