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". 

Input: Consider Input: [header] How to operate a manual pallet jack [title] Find the release lever. [step] Stand behind the manual pallet jack as this is the position you will be in when you move it. Find the small lever that allows the pallet jack prongs (the large flat metal pieces near the floor) to drop all the way down toward the floor. <sep> (A) Pass that lever over the top of the pallet jack, locking it in place with your fingertips. Keep the pallet jack in this position for 45 seconds, until it begins to tilt upwards slightly. (B) Lock the release lever in place and open the pallet jack by rotating it counter clockwise. [substeps] One second later, reverse the motion in the locked position and use the bucket with the release lever to hoist the pallet jack farther up. (C) [substeps] The pallet jack drop lever is often a small lever in the middle of the rounded handle, on the vertical stem of the manual machine. It may be distinguished by a different color of plastic, or otherwise marked, or it may not be. (D) [title] Pull the lever counterclockwise. [step] Steadily pull this lever counterclockwise.

Output: C


Input: Consider Input: A girl presses a full lemon on a machine into a cup. The workers add sugar and water before shaking the cup. a straw <sep> (A) skims over a woman's shoulder. (B) is tilted into the cup and the girl dips a sip into the cup. (C) is added and the lemonade is placed on the counter. (D) is held across the machine.

Output: C


Input: Consider Input: [header] How to treat mild altitude illness [title] Descend to a lower altitude. [step] If you start to experience any symptoms of mild altitude sickness, such as a headache, lightheadedness, or lung pain, you should descend by at least 500 m or 1 , 600 feet. This will give your body time to acclimatize to the altitude and relieve your symptoms. <sep> (A) [substeps] If you experience brief symptoms such as fatigue or chest aches, you should lower. If you experience movements that become more fluid while you are lower than normal, that form of exertion can aggravate the symptoms of higher altitude illness. (B) [substeps] Don't go too far down. Those below 200 m are at a higher risk for altitude sickness than those below 250 m or 1 , 800 feet. (C) [substeps] You should avoid attempting to go to higher altitudes for two to three days, or until your symptoms have disappeared. Severe altitude sickness can be fatal, so if you notice your symptoms getting worse, make sure you descend to a much lower height. (D) The more acclimatized you are, the greater the chance of moderate to severe altitude sickness. [title] Avoid flying over any giant ice and snow piles.


Output: C