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 substitute pornography [title] Find fun activities. [step] Instead of temporary pleasure that you may feel guilty about later, invest in your happiness. If you don't have any work to do, then start doing what gives you happiness (porn gives pleasure, not happiness). <sep> (A) Meetup.com provides fun and downloadable activities. [substeps] If you love reading, then find something reading. (B) Create activities that take your mind off the sugar and waste accumulated in the body. [substeps] For example, you might take your cat for walks every sunday morning, play charades, take a walk in your neighborhood, or watch a funny show on youtube. (C) Instead of spending time watching pornography as it is relaxing and educational, use it for fun and discovering how the world works. Take that step and visit your local library and check out reviews. (D) Find activities that take up a large chunk of time that will allow you to get out of the house or at least be occupied for a substantial amount of time. [substeps] Invest in some hobbies you find enjoyable, especially social hobbies that allow you to make friends and have fun.

Ex Output:
D


Ex Input:
[header] How to blacken steak [title] Choose new york strip steaks or rib eye steaks. [step] You want to use these lean cuts because they will cook evenly and blacken well. Choose steaks that are about 3/4-inch (1.9 cm) thick. <sep> (A) [title] Defrost the steaks completely in the refrigerator overnight. [step] Do not defrost them in the microwave, or you will ruin the process of blackening them. (B) Look at the internal temperature of the sirloin steaks and see if they are ready to be grilled. Use a grill thermometer to check for the internal temperature of the steak when it is on the grill. (C) If you don't want a table full, for instance, skip the steaks. [title] Sear the steak at 180 degrees. (D) [substeps] Before you cook the steaks, check each raw side. For thicker cuts, use 1/4 to 1/2 cup (1.7 to 1.75 g) of brisket for each steak.

Ex Output:
A


Ex Input:
[header] How to set up a photographer's website [title] Decide on the kind of photography you want to focus on. [step] Know your photography genre well and be good at it because it will dictate the style your site will have. [substeps] Wedding photographers tend to focus their entire graphics, copy text, logo design etc towards this niche market. <sep> (A) Professional photographers tend to focus their business or work only on the site itself. Film producers tend to focus their product exclusively on the project for which they are consulting. (B) You should dedicate yourself to familiarizing yourself with the genre you wish to work with. If you are a general photographer, choose your overall style that best resonates with you and represents your identity. (C) If you're a young woman, focus mostly on classic portraits. If you're an older woman, focus heavily on modern, new subjects like buildings, natural scenes, and landscapes. (D) Outdoors or skiing photographers tend to focus their image and may provide more professional photo services that may also accommodate different types of equipment. Photography companies often use picture cards or styrofoam cups with picture titles like " high quality photographer " and " pro photographer ".

Ex Output:

B