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".

Example Input: [header] How to give a girl a kiss she will never forget [title] Brush your teeth! [step] Nothing worse then kissing someone that has halitosis breath. [title] Make sure to take a deep breath and clear your mind. [step] Try to just focus on the person that you are planning on kissing. <sep> (A) [title] Make sure you are alone! [step] If the girl you have kissed is one of your friends, like an old friend, then make sure you are alone. It's best to just sit somewhere discrete, and not invade anybody's space. (B) When you have the kiss set, kiss her. [substeps] Once you both have made steady eye contact, look up and smile! Make sure your smile is sincere so it won't come across as forced. (C) [title] Slowly lean in until your lips touch. [title] Keep lip contact soft and gentle in the beginning. (D) This could be your mom, best friend, an acquaintance, or anybody. When you are done brushing your teeth, repeat in your head.
Example Output: C

Example Input: A man is pushing a lawn mower through the grass. A child is standing next to him pushing a toy lawn mower. they <sep> (A) speed past a car in the street. (B) pass other kids on the lawn mower. (C) move up and down the lawn on the mower. (D) give each other a high five.
Example Output: D

Example Input: [header] How to use eyelash growth serum [title] Research over-the-counter growth serums. [step] There are a variety of growth serums that you can purchase at your local pharmacy, beauty shop, or department store. These products are advertised to increase the thickness and fullness of your eyelashes. <sep> (A) [substeps] Serums are available in sprays, creams, or gel forms. The thinner the product, the healthier your lashes will be. (B) However, remember that these serums could cause your lashes to grow too quickly, if they are used too frequently, or even if your lashes wear out. These are some of the best growth serums available. (C) Read over all of the labels carefully and make sure you use products that are compatible with your eyelash growth serum. Some of the best applications include : [substeps] Eyelids. (D) They often contain various ingredients such as natural peptides, vitamins, and oils. Review the label on each product to see what it contains, or ask a specialist at a beauty salon or cosmetic shop for recommendations.
Example Output:
D