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". 

Example Input: This video allows viewers to hear the testimony of a customer who has used the pro roofing service. First the man tells how he heard about the service and how great it is. he <sep> (A) also says that he chose pro roofing because the neighbors chose it and persuaded him by telling how great the service is. (B) gets the materials to do the job and is joined by a group of small children who are drinking lemonade at the lemonade stand and talking. (C) starts by explaining how he is going to first tell the detail of creating a casing using an iron, then he starts on eggs and bacon. (D) talks about some graphic details.
Example Output: A

Example Input: [header] How to restore a boat [title] Make a plan. [step] Plan your work by breaking everything down into sections, like chapters in a book. Chapter one is planning. <sep> (A) This is where your business development can start. Analyze the navigation board, take all the necessary materials and then create your grand vision. (B) This step is not yet complete, so you need to prioritize moving toward part 1 of the project. This will help you tackle all your major projects faster, so that you can review your own work by taking each section and remembering to include the steps in that section over time. (C) The next phase might be stripping the boat in preparation for the work. [title] Prepare a work site, gather tools and supplies, carve out a dedicated time on a regular basis with your schedule, consult experts in the field, and also outsource certain components as needed to certain experts. (D) Plan your time on your own to avoid confusion and frustration with each chapter. Be sure that you aren't scrambling for ideas as you go forward so that you don't get overwhelmed by too many ideas.
Example Output: C

Example Input: [header] How to replace a toilet [title] Get rid of all the water. [step] Turn off the water at the supply valve. Flush the toilet to remove most of the water (holding down the flusher for as long as possible). <sep> (A) Then, turn on the water in the toilet. [substeps] Make sure all parts of the toilet have been replaced. (B) Clean the toilet or tub with a quality cleaning soap and warm water. Ensure all of the water runs out before proceeding. (C) [title] Remove all the toilet paper liners, carefully. [step] If necessary, use tape to secure the liner to a long jet tube. (D) Remove the remaining water from the bowl by forcing it down with a plunger and mopping up the remaining water with a sponge. Then, remove the remaining water in the tank with the sponge as well.
Example Output:
D