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 shows how to change a tube in a tire. he <sep> (A) puts a jack under the tube to lift it up. (B) puts a new tire on the tube. (C) takes the old tube out, puts the new one in, then pumps it up. (D) moves dirt covering the tube.

Ex Output:
C


Ex Input:
A man in yellow glasses takes a drink out of a water bottle. People are running across a finish line of a race. someone <sep> (A) falls back on the sand and gets trampled. (B) puts a medal around another person's neck. (C) crashes into the backstretch lane. (D) holds up crumpled sticky things.

Ex Output:
B


Ex Input:
[header] How to save free music download in itunes without it expiring [title] Download some free tracks provided by an artist you like. [step] ( these can be found on the artist's website, purevolume.com, or possibly their myspace/facebook pages). Open your itunes if it is not already open. <sep> (A) Click on the " music " tab and select the tracks that have been released or available using a similar search tool. [substeps] You'll find this button below the song title titled " music. (B) [substeps] If you are creating a playlist there are some songs to choose from but the size is not always important. [title] Import various songs and synchronize them onto your music file in itunes. (C) [title] Figure out if itunes is your primary music player. [step] If your itunes is your primary music player the song will automatically download into it. (D) [title] Choose a music library that best suits your needs. [step] Some libraries only allow music to be extracted when they are merged in, whereas others allow download when the music files are shared between multiple people.

Ex Output:

C