C. avoiding friends and family
The specific aerobic exercise is the most important factor if a person's goal is to increase his or her overall fitness. Aerobic exercises means "with oxygen" which will increase your heart rate while working out. Some of the specific aerobic exercises include brisk walking, swimming, running, also known as cardio workouts.
I'm THINKING C because a again you normally inject in the arm and the bicep is part of the arm acctually maybe E!
It is recommended: 0.8 g for every 1 kg of body weight ( at BMR - Basal Metabolic Rate or with a little exercise ):
1 kg ≈ 2.2 pounds
180 pounds : 2.2 = 81.82 kg
81.82 · 0.8 = 65.5 ≈ 66 g
Answer:
66 g proteins are his daily needs ( remark: it is more if he is active in sports ).