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:
We see a rowing machine in a exercise room. a lady <sep> (A) picks up a machine and lifts it to her shoulder, then drops it. (B) starts putting her feet in the turning machine. (C) sits on the seat and pulls the cord of the rowing machine. (D) pushes a machine.

Ex Output:
C


Ex Input:
[header] How to ask survey questions [title] Understand your objective. [step] Make sure you know why you are asking questions in the survey. Having a firm grasp of this will help you make better questions. <sep> (A) Without knowing your objective, your questions may seem aimless. [substeps] Try to answer the questions: who, what, where, when and why for yourself. (B) [substeps] However, you may not have a completely clear and accurate understanding of your evaluation topic. You may need the fact-figure accuracy to have a clear and reliable assessment. (C) You can additionally foster a good relationship between you and the question that came up. [substeps] Once you have developed a rapport with the question, you should begin addressing it. (D) [substeps] Determine whether the survey may be a waste of time. If the survey results in a huge number of questions, it will be better for you to leave some questions blank or to completely miss the question's significance.

Ex Output:
A


Ex Input:
A group of people walk by in the background. We see a game of poker being played. An odd man appears in front of the camera. we <sep> (A) then see an empty room. (B) see a shuffleboard game playing in slow motion before a reporter appears on the screen. (C) see the first man, then cards being dealt and we fade to a black screen. (D) see the loser and dealer.

Ex Output:

C