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 Input:
A view is seen of the outside of an airport, then the wing of the flying plane. A man is on the plane wearing a mask. several people <sep> (A) are sleeping in the dark quarters. (B) fly by on a road inside the plane. (C) are shown flying the aircraft, while shooting at a large target at one point. (D) speak, then they all fly kites on the plane while people walk by.

Ex Output:
A


Ex Input:
[header] How to avoid water retention [title] Have a healthy diet. [step] Ensuring you have a healthy, balanced diet is a good first step to avoid water retention. Water retention can occur due to imbalances in your diet, deficiencies of some vitamins and minerals, and having too much salt. <sep> (A) One study found that people with excess salt = no water retention. " imbalance " can add up as a reason for water retention and include making it much more difficult to stay hydrated. (B) Excess salt raises your blood pressure, resulting in inaccurate results. Look for foods that are low in salt and low in water. (C) Eating a balanced diet will help to reduce the chances of water retention occurring due to these issues. [title] Eat food that is rich in potassium. (D) [substeps] If you have recently cooked or baked a meal, make an effort to change your recipe one day. This can help your body prevent the retention.

Ex Output:
C


Ex Input:
[header] How to grow miniature roses from cuttings [title] Experiment. [step] Not all forms of miniature roses will take as cuttings, and unfortunately there is no foolproof list of which can be grown in this manner and which cannot. It depends on the soil, the climate, and the rose in question. <sep> (A) With your hands full, experiment with different cuttings. [substeps] To grow a poppy plant, you will need: a cutting, a layer of soil, and a 3 to 4 foot (0.91 to 1.8 m) bucket of water. (B) Read how to grow a miniature rose the sage nursery, on blue lantern road, sallo mansion, and albert hall to learn. [title] Brush your plants with a paintbrush. (C) So be prepared for some successes and some disappointments--but do keep trying. [title] Choose a healthy stem from the miniature rose from which you wish to propagate. (D) As the growing season nears and blooming season ends, you'll likely have to replant existing brushes, and your cutting as well. [substeps] Variety is generally a matter of personal preference.

Ex Output:

C