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 improve your math sat score [title] Download the sat practice app. [step] Go to the college board's website and head to the " daily practice " section. In that area, you will find a link to download an app that will help you prepare for the sat. <sep> (A) The app will send you practice questions each day. It will also let you scan paper practice tests directly into your phone. (B) Select " free practice " from the " start recording " menu. The app will track your transcripts in reverse to help get you out of your " cheat " section and back to working. (C) Under the heading " learning your math skills, " select " help me study for the sat. " from there, you can print out the app and write out your notes once you've installed it. (D) [substeps] The app is free, but can be expensive. It takes some time to install, so if you have trouble getting a perfect sat score, talk to a guidance counselor for help.
Output:
A