TASK DEFINITION: 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". 
PROBLEM: [header] How to assemble an emergency roadside kit for a desert climate [title] Prepare for car repairs [substeps] Include foam sealant or a battery-powered air compressor in your desert roadside kit. These will aid in a quick repair in case of a flat tire. Also store an extra jug of coolant in case your car overheats. <sep> (A) Supply any diicer you won't need to replace whenever your car loses power. A small backpack with flexible, flexible, and weather resistant backpacks are more critical. (B) Carry jumper cables and a tire jack in your car trunk at all times. [title] Stay hydrated [substeps] The temperature of the desert will be one of your worst enemies if you get stranded in a roadside emergency. (C) Using heat-powered oxygen pumps, burns fuel, or compresses materials may be delays during basic car repairs. [title] Obtain specialized supplies [title] Find the correct car mechanic. (D) [title] Buy a driver's side cooler. [step] Gas stations and convenience stores are excellent outdoor places to pack.

SOLUTION: B

PROBLEM: [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.

SOLUTION: A

PROBLEM: [header] How to make fake dimples [title] Wash the bottle cap. [step] You can use either a metal or a plastic bottle cap, but since the cap will be going into your mouth, you need to make sure that it has been thoroughly cleaned, first. [substeps] Metal bottle caps are shallow and tend to produce more subtle, natural looking fake dimples. <sep> (A) Plastic caps are generally thin and relatively wrinkle-free. Plastic caps work best on hard-to-reach places, like the grooves on metal bottles. (B) Plastic bottles that have been folded in half or moved around will produce a much more subtle, flattering impression. Plastic bottles that come in two most common colors will also work well. (C) Plastic bottles that are professionally cleaned are far less likely to produce noticeable fake dimples. [title] Moisten a cotton ball with water and wash the bottle. (D) The ridges can be painful, though, especially if you have sensitive cheeks. Plastic bottle caps come in a few different sizes.

SOLUTION:
D