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".

Example Input: A man is talking while holding a toothbrush in his mouth and starts to brush his teeth. The man continues to brush his teeth while talking some as well. the man <sep> (A) then touches his head and fingers it as well as his face. (B) has a spray bottle and sprays it onto his teeth and he's back to brushing his teeth as well. (C) grins with paste in his mouth and continues to brush his teeth. (D) spits his mouth out into the sink which continues to make him embarrassed and has him grab his toothbrush.
Example Output: C

Example Input: [header] How to change trackpad settings on macbook pro [title] Find the system preferences. [step] Starting from your main desktop screen there are two ways to find the system preferences where the mouse and touchpad settings will be located : [title] Bring your cursor to the bottom screen and find the system preferences application. [step] The icon looks like a box with three gears inside it. <sep> (A) Open that to find all your system preferences. [substeps] Alternatively, you can use the spotlight feature. (B) On macbook pro this icon resembles a round blue square with a horizontal green dot on it. On other applications this icon is actually a box with a gear, and is small in appearance. (C) It can be located on the taskbar or in the upper left-hand corner of the window. [title] Let the system preferences application perform its work. (D) [title] Click the customize key in the dialog box. [title] Follow the on-screen instructions to change the customization function.
Example Output: A

Example Input: [header] How to wash your hair according to your hair texture and type [title] Thoroughly brush your hair before entering the shower. [step] Brushing the hair before entering the shower detangles and spreads the oils from your scalp to the ends of your locks. [title] Run warm (not hot) water for your shower. <sep> (A) [step] If you can stand it, use cool water. This seals in shine for your hair, and is overall, much healthier. (B) [step] Most people find this is more soothing and helps loosen their hair from any rough pathways. This works well in warm or cool showers which put hair straight up and provides the hands with more room to work. (C) [step] Then then, wait 1-2 minutes before getting out. [title] Fill a spray bottle with about 10% shampoo. (D) [step] Be sure to use a clarifying shower gel or serum to keep your tresses looking smooth. You can leave a bit of mousse throughout the water to help keep your hold in place.
Example Output:
A