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". 

Ex Input:
A man walks into a room. the man <sep> (A) is then sitting at a table, taking out sock remotes and tools. (B) begins to smooth plaster on the wall. (C) twists the objects made from pieces of wood. (D) is dozing and waking with his arms outstretched.

Ex Output:
B


Ex 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.

Ex Output:
C


Ex Input:
[header] How to deal with migraines [title] Prevent a migraine from getting worse. [step] It is important to take immediate action to prevent a migraine from becoming worse. Once a migraine has started there a few things you can do to reduce the severity and help deal with the headache. <sep> (A) [substeps] Wear prescription medical gloves and eye guards to protect yourself from any contact with the device you are using to treat a migraine. Do not allow the device to roll or become twisted during the process. (B) [substeps] Find a calm environment and retreat from your daily challenges as much as possible. Dim the lights in the room lie down or use a reclining chair if possible. (C) [substeps] Taking migraine medication can help control the immune response and reduce inflammation. Many experts recommend taking 150 minutes of aspirin each morning if you have a migraine. (D) You can : [substeps] Try to sleep during the day. Avoid going to bed during the day as this irritates the central nervous system.

Ex Output:

B