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]: [header] How to make scented rocks [title] Purchase supplies from a local department store or craft store. [step] You will need plain flour, salt, food coloring and essential oils. Essential oils are oils that have been extracted from various plants. <sep> (A) You do not need to use all different oils, but big quantities will work. [substeps] Choose oils that you associate with fresh fruits and vegetables and herbs. (B) It can be easily purchased at craft supply stores or you may be able to find them online. Get an essential oil primer, then make sure your acrylic rock is thoroughly coated. (C) You can also purchase essential oils from craft stores, or you can order a variety of essential oils online. [title] Mix together 1/2 cup (118 ml) of plain flour and 1/2 cup (118 ml) of salt in a mixing bowl. (D) You will need and obtain the following materials : [substeps] A 40 oz mixing bowl large enough to fit the stones. If you do not have these materials to gather, a mixing machine at an arts and crafts store can be more economical than a large ceramic mixing bowl, which will require little or no space.
[A]: C


[Q]: [header] How to stretch to improve your flexibility [title] Warm up your muscles. [step] Perform 40 jumping jacks , 25 squats, run on the spot for 5 minutes, and ten press-ups or ten girl press-ups if you are not strong enough. [title] Start with simple stretches to get used to the concept and feeling of stretching. <sep> (A) [step] You can stretch on a ball or in the sky. Avoid attempting to do anything difficult or hard and figure out what you're doing properly. (B) [step] Does it feel to stretch? That is great. Start slow and do thirty chest presses before you reach bench pressing. (C) [step] Stretching is the single best way to exercise comfortably and to elevate your blood circulation. [title] Work your muscles with the backbend workouts. (D) [step] Stand up and stretch your legs into a wide straddle. Reach down until your palms rest on the ground, keeping your legs straight.
[A]: D


[Q]: [header] How to write accurate dialogue in historical fiction [title] Read primary sources to familiarize yourself with the time period. [step] In order to get in the mindset of writing for your time period, read letters, journals, and other types of personal communication. [substeps] Take note of the differences you see between that era's dialogue and modern dialogue. <sep> (A) Reading these works will inherently train your subconscious to identify and utilize historical constructions in your writing. [title] Watch period television shows and commercials to acquaint yourself with more recent time periods. (B) In one way, historical fiction works more strongly during the present era than it does in the decades before it began. [title] Learn more about how your time period works. (C) For example, modern dialogue may look like the previous century's dialogue. Often, example sentences create base statements about a character's personality or character's lifestyle. (D) For example, in most historical fiction, dialogue took place in 1942, while modern fiction was in 1942. Write down the rhythm and structure of different sentences, and compare multiple editions of each.
[A]:
A