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:
[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.

Ex Output:
C


Ex Input:
A girl comes onto the screen and explains that she will be making some lemonade and shows the things that are needed. she <sep> (A) is attempting to take the lemonade from two cups that are standing outdoors, and attempting to make lemonade. (B) then walks to the sink and gives a very animated tutorial about the process and how to make them. (C) scoops some powder into a pitcher of water. (D) then returns to her strawberries and cucumbers and bashes them with a cucumber cocktail as well.

Ex Output:
C


Ex Input:
[header] How to change valve springs [title] Locate the coil packs on the drivers side valve cover. [title] Disconnect the spark plugs. [step] Beginning with the forward most coil, trace the spark plug wire down to the spark plug. <sep> (A) The ignition switches at the coil, and the ignition switch is usually labeled as " it. " [title] Use the utility knife or similar tool to cut the spark plug wire, exposing the coil. (B) Some designs may require you to unscrew these already disconnected, removing any safety components on the head of the spark plug. [substeps] These are usually linked together in a bravrig with attached ignition cylinders on the rear. (C) Remove the wire from the spark plug by firmly grasping the boot at the end of the wire and pulling on it. Let the plug wire dangle from the coil. (D) [title] Use the wire strippers to cut the spark plug wire at the drilled area. [step] Check to see if the spark plug wires in this diagram are where you need them.

Ex Output:

C