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".

[header] How to lose weight while pregnant [title] Do not try to diet while pregnant. [step] You should never try to lose weight while pregnant unless your doctor specifically tells you otherwise. Do not start a weight-loss regimen after you find out that you are pregnant. <sep> (A) [substeps] One step toward weight loss is to eat well. You need to choose nutrient rich fruits, vegetables, and whole grains instead of refined or powdered foods like white rice or processed meats. (B) Complete a weight-loss diet before you go on maternity leave. These diet guidelines include one guideline : [substeps] Consume 7-9 servings daily, according to your weight. (C) It is actually recommended that all women gain weight during pregnancy. [substeps] Obese women should gain between 11 and 20 pounds (5 and 9 kg). (D) Your health and well-being can be at stake when you conceive. [title] Choose healthy foods when trying to lose weight.
C