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". 

[Q]: We see a man teaching others to sharpen a knife in a butcher shop. The man wets the sharpening stone. Two men in the back laugh at something. the instructor <sep> (A) shows us a basket of pennies. (B) checks the knives and uses the sharpened knife to sharpen a one. (C) uses a sharpening rod for the knife. (D) puts a paper in the sink.
[A]: C


[Q]: [header] How to research the market before launching a product or service [title] Start by doing some qualitative market research. [step] You can do it with an agency or on your own. You only need few people (between 5 and 10) from your target market (potential customers) so it is possible to diy. <sep> (A) [title] Don't expect to work in a large company. [step] Meet people for a coffee, greeting and perhaps the business plan or abstract of a product you just started. (B) It can be very helpful to have people assisting in the research so you don't become too particular. [title] Conduct an analysis of the food, drug or cheese market. (C) The only important thing is not to choose some people that you know. This qualitative research has to be done in an objective and neutral way. (D) [title] Gather information in an essay, packet, card, book or letter. [step] This will help keep the reader engaged.
[A]: C


[Q]: [header] How to extract juice from an onion [title] Peel the skin. [step] Use a sharp serrated knife to cut a small slice, no larger than 1/2 inch (1.27 centimeters), from the root end of the onion. Slice through the onion until you reach the skin on the other side, but do not cut through the skin. <sep> (A) Grab the partially cut end and pull it down, past the length of the onion, to draw back a portion of the skin. Grab the remaining skin with your thumb and first two fingers and draw it back to remove it. (B) Cut along the edge of the onion with a paring knife to slice it down the middle. [substeps] Removing the skin does not completely remove the core, but rather makes it easier to extract. (C) [substeps] If the skin is peeled off, do not cut through it, but break it. [title] Slice the skin away from the onion. (D) [substeps] Avoid sharp pruning shears. Serrated blades can damage the onion and waste the juice.
[A]:
A