Answer:
They have denser bones and a higher amount of lean tissue, which contributes to their elevated body weights.
Step-by-step explanation:
Body mass index (BMI) indicates the level of the individual whether he is underweight, normal and overweight. This can be calculated by dividing the weight of an individual by the square of the height.
BMI of the individual depends on the types of diet on which the individual feeds. The football players do exercise and eats protein rich diet that have lean tissues and high bone density. This affects their body weight and categorize them into the obesity category.
Thus, the correct answer is option (d).