Multi-choice problem: Continue writing the next sentence in this paragraph:

How to be a pretty 9 year old girl
Maintain your health.
Improve your physical appearance by having a healthy diet and exercising every day. Check your weight to make sure that you stay within the healthy range, but don't worry if you gain a pound or two.

Available choices:
[a]. You can get the following data : If you burn 500 calories a day, you are at a healthy weight and look like a size 10 diabetic. Follow a healthy diet to maintain your health.
[b]. Additionally, stay hydrated and improve your skin by drinking at least eight glasses of water per day. If you take good care of your body, it will show in your appearance.
[c]. Not everyone can keep up an exercise routine. Improvement can be about money-what matters is making sure that you have enough calories to get through the day without bloating out.
[d]. Wear clothes that are not too tight or super baggy. Avoid being too skinny or too curvy to feel healthy and pretty.
[b].