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 keep spiders out of your gardening boots [title] Wash an unwanted pair of pantyhose. [title] Cut the legs off and discard the waist portion. [title] Roll a leg over the open portion of the boot, pulling down to the toe area. <sep> (A) [step] If your leg is not entirely off, fold the front under so you may have one leg intact, exposing only a toe area and one upper portion. Trace a few lines on the bottom piece of the boot using a pencil. (B) [step] Leave about two inches of leg open. This will allow bugs or vines to climb up. (C) [step] The toe area will sit across the open portion of the boot. The pantyhose acts as a barrier against any creepy crawlies finding their way inside. (D) [title] Cut off the side of a skinny sock. [title] Pull some adhesive glue, such as elmer's glue or duct tape, onto a small space in the sock, about ½ to ¾ an inch wide.
[EX A]: C

[EX Q]: [header] How to buy a wood burning stove [title] Consider your heating needs by evaluating the size of your home. [step] You will need to determine the heat load necessary to maintain the square footage of the area you want heated. Heat load is measured in btus, or british thermal units. <sep> (A) Inquire about btus and thermal units using online resources. [substeps] Btus heat packs can be found at home improvement stores, department stores, and some gas stations. (B) To determine how much heat you need, pay attention to the dimensions of each room you intend to fire in. [substeps] The larger the square footage, the larger your fire seats will need to be. (C) You will need 25 to 30 btus per square foot. [substeps] Measure each room to be heated with measuring tape. (D) Btus are rated from 2000-1000. Btus can be changed or altered depending on the size of your home.
[EX A]: C

[EX Q]: [header] How to do half wheel pose in yoga [title] Lie on your back with legs straight and arms at your sides. [step] Bend your legs at the knees and place your feet near your buttocks. Make sure your feet are parallel to your shoulders. <sep> (A) Your hamstrings should be on each side of your feet. [substeps] Do 4 to 6 repetitions of this exercise per class. (B) Place your palms flat on the floor and support your body weight with your feet. [title] Lift your arms above your head in the 90 degree position with your palms facing each other and point your toes toward each other. (C) You can now take half wheel pose, which is the process of lying flat on your back with the soles of your feet flat on the floor. [substeps] Use caution when doing the half wheel pose if you're on your knees as this is a pose that you will not be doing on your back. (D) [title] Exhaling, slowly raise your hips from the floor such that the body makes a straight line from head to knees. [title] If this feels comfortable, then shift your weight on to one leg by shifting the weight on to one leg and straightening the other leg to align with your body.
[EX A]:
D