instruction:
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". 
question:
[header] How to spear like a wrestler [title] Prepare yourself to approach your opponent. [step] Stand about four or five running paces away from your opponent. Make sure you and your opponent are directly facing one another. <sep> (A) Stay close together as you get closer, and make sure each of you make eye contact. Throw your dominant leg, leading with your non-dominant foot. (B) [substeps] The momentum created by the know-how between us will carry us together as you spear each other. This is the position of the likely opponent to lunge up to and grab your or her off the ground. (C) Hunch over slightly and bend your knees to get into an athletic stance. Spread your arms out slightly out and forward from your body so you're ready to grab them. (D) Move slowly towards them at a consistent pace. [title] Position your arms in front of your body to open up space for the spear.
answer:
C


question:
[header] How to study the phenomenon of light as a nonequilbirum state of matter [title] Understand how thermodynamic systems are categorized. [step] Thermodynamic systems in nature are divided into two types. One is systems that are at equilibrium state with the environment and the other is systems that are in a state of nonequilibrium with the surroundings. <sep> (A) On earth, nature has a preference for systems that are at an equilibrium state with the surrounding. This is so due to the principle of minimum energy that every object in the universe aspires to have. (B) For example, gas rising in temperature throughout the day can be divided into microorganisms in the environment. [substeps] For example, gas rising in temperature in the atmosphere can be divided into molecules in the environment. (C) [substeps] Equilibrium is fundamental in thermodynamics. Other systems include stars, planets, and oceans. (D) [title] Learn about the term " rock hydrodynamics ". [step] Rock hydrodynamics refers to the transfer of water to the earth's surface.
answer:
A


question:
[header] How to dye your hair with dye cream [title] Wash your hair with shampoo and conditioner. [step] Hair that has recently been moistened and conditioned is more able to absorb new color than dry, brittle hair. Brush your hair after you wash it so you have tangle-free tresses to work with. <sep> (A) [substeps] You can shampoo your hair with your fingertips, or use a fine-toothed comb to fluff your hair and remove frizzy strands. [title] Pour some dye into a small bowl. (B) [substeps] When dyeing your hair, make sure that your hair is thoroughly conditioned before applying the dye. You should avoid using hair acrylic, which can dry out your hair the same as drying it with dye. (C) [title] Dry your hair so there is less dye stuck to the strands. [step] Curly hair usually turns out straighter after being properly conditioned. (D) [substeps] You need to apply most dye creams to dry hair, so you'll want to blow-dry your hair after you wash it, or if you have time, you can let your hair air-dry before applying the dye. You can apply some dye creams to damp hair.
answer:

D