instruction:
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". 
question:
[header] How to find the number of a blocked call [title] Get an private branch exchange (pbx) account. [step] One option is asterisk, a free, open source software. Another is switchvox. <sep> (A) This will also work better than 200 blackwire. If you buy one, it will work with the same account ($ 0.11). (B) The pbx is considered to be a free exchange. While this service typically does not have much use for a desktop account, it gives you access to many anonymous call accounts. (C) A pbx converts your computer into a telecommunications device and will allow you to manipulate incoming call data to identify blocked callers. [substeps] Before embarking on this method ensure that you thoroughly understand the technical challenge it presents and the potential financial burden it incurs. (D) Without switchvox here you are on better business. No other option is available to get a contact number from an online website.
answer:
C


question:
A woman spins a blindfold person holding a stick on front a pinata. Then, the person hits the strong, while the pinata is moving. the person laugh <sep> (A) when tie the pinata and continue dancing and laughing. (B) and the woman approach her. (C) and throw the pinata. (D) and catches a square the object.
answer:
B


question:
People are standing on a sidewalk playing instruments. People are standing on the street behind them watching. a man <sep> (A) is walking down the sidewalk holding a wire. (B) is walking then another followed. (C) sits down on the sidewalk discussing. (D) stops and takes a picture of them.
answer:

D