You will be given a definition of a task first, then some input of the task.
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 make dental health fun for your kids [title] Incorporate fun activities when kids brush their teeth. [step] Kids will be more motivated to complete their brushing and flossing if they find it enjoyable. You can turn tooth brushing into a game-for example, brush with your kids and see who can build up bubbles with the toothpaste. <sep> (A) You can also encourage fun by doing simple behaviors like opening drawers or showering while you are brushing. [substeps] For instance, make sure your child keeps a clean mirror in your rooms so they can see how is happening in the room. (B) Put in new toothbrushes each day when your kids visit the supermarket. Use and replace toothpaste as well. (C) Use cutting toys like pipe cleaners or rope toys. [substeps] These toys are also fun for younger children. (D) [substeps] You can also make brushing more fun for your kids by playing a song in the background while they brush their teeth. It could be their favorite tune from a kid's show or a cartoon.
Output:
D