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 Q]: [header] How to remove paint from a car exterior [title] Park the car on top of a large tarp or drop cloth to contain the old paint. [step] The old paint should be disposed of instead of letting it contaminate the ground. If an open area is not available, park the car inside a garage, but open all of the garage's windows and doors for ventilation. <sep> (A) Cover objects inside the garage to protect them from the paint dust. [title] Use masking tape to cover the areas of the car that won't be sanded. (B) Alternatively, use a flashlight to check beneath the tarp. [title] Use an old baseball bat, crowbar, pry bar, or other large object to push the old paint off of the vehicle. (C) [title] Wipe the paint with a wet cloth, a roller wrap or an old towel to protect it from oil and water. [step] The paint is likely to collect on these cloths and make them easier to clean as they are removed. (D) If your garage is not well ventilated, a ventilation device will block your windows when the old paint has dried to a mud-like consistency. [title] Pour a small amount of vinegar into a small bucket.
[EX A]: A

[EX Q]: [header] How to make icing for cookies [title] Gather your ingredients. [step] This simple recipe for sugar cookie icing only takes fifteen minutes to make. It yields enough icing for twelve to fourteen cookies. <sep> (A) Bake your sugar cookies before you start on the icing. They must be completely cool before you can ice them. (B) To make this recipe, you will need the following ingredients : [substeps] 11 cookies 1 greased cupcake (finished) 2 cups sugar [title] Preheat the oven to 350 ° f (177 ° c). [step] You will grease the cupcake pan. (C) You will need : [substeps] 2 ¾ cup. Of all-purpose flour 2 ½ cup. (D) It also has the added benefit of approximately 70% reduced fat. The amount of icing depends on how many cookies you plan to make.
[EX A]: A

[EX Q]: [header] How to keep a turtle healthy [title] Provide an enclosure with adequate space. [step] Ten gallons per inch of your turtle is a general rule. 50 gallon (189.3 l) minimum for a baby turtle (younger than a year old) and 120 + for an adult. <sep> (A) Make sure that you have a general idea of the size your turtle will reach when full grown so you are not blindsided with keeping a turtle you cannot maintain. [substeps] Decide on a land or aquatic turtle. (B) If you pet a turtle too many times, it can run away. A turtle needs something to run on, such as leaves, instead of sand or gravel, and a tank that fits tightly. (C) This will give you time to adjust to the turtle's size and health while still allowing the turtle to bond with the family. [substeps] A turtle's enclosure should be 6.8 inches (23 cm) by 12 inches (30 cm). (D) Turtles of any species should have an enclosure at least 20 feet (4.5 m) wide by 50 feet (6.1 m) deep. It's best to provide a tank that is similar to the size of your turtle.
[EX A]:
A