In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Q: [header] How to be a physically attractive woman [title] Get exercise. [step] Scientific studies have shown that one of the strongest traits of physical attractiveness is a healthy bmi (body mass index). Your bmi is the amount of fat on your body in relation to your height and weight. <sep> (A) This means men can gain about an inch or two in waist circumference, while women can gain about a pound in hip circumference. While this is not a perfect amount for all people, it is decent and healthy for both men and women. (B) A bmi of around 67-97 is considered normal when you exercise, and as it evolves, it should increase or decrease slightly. Exercising can also prevent you from gaining a thicker muscle mass and keep you from gaining too much height. (C) If you have a bmi of more than 50 or greater, you could be significantly more appealing to women. [substeps] Studies show that exercise kills excess fat and increases your metabolism. (D) [substeps] You can maintain a healthy bmi by making sure you get regular exercise. Good exercise can include aerobic training, strength training, sports, or outdoor activities.
A:
D