Answer:
B. Being overweight or obese can lead to health conditions such as type 2 diabetes, certain cancers, heart disease, and stroke.
C. Being underweight could also affect your health.
Step-by-step explanation:
In the excerpt, the writer focuses on the importance of physical activity in maintaining a healthy weight. Being underweight or overweight could both be classified as unhealthy weight. So, the excerpt shows that lack of exercise could lead to obesity which could lead to health conditions such as type 2 diabetes, certain cancers, heart disease, and stroke. Being underweight could also affect your health because it is not a healthy weight.
To maintain a healthy weight, the writer encourages the reader to use his healthy weight calculator. Physical activity, as simple as walking home from work would also be helpful.