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 stay up late without electronics [title] Drink caffeine. [step] Caffeine blocks neurotransmitters in your brain that make you sleepy. When you start to feel drowsy, reach for a cup of coffee or a soda. <sep> (A) Remember that caffeine loses its effectiveness with overuse. Try to save it for when you really need it. (B) Your body will start shutting down caffeine when you're outside and keep you awake by doing what it is meant to do. It can help you stay awake long enough to go to bed. (C) Though caffeine will not give you energy right before sleep, it will trigger the natural sleep signal that draws us into the world right before it hits. An caffeine-rich beverage will wake you up more, making your sleep better. (D) Coffee is the source of human sleepiness so drinking coffee or another caffeinated beverage before bedtime is important. Even an extra pill is a key lubricant.

Output: A


Input: Consider Input: [header] How to show a girl that you care (for guys ) [title] Get to know her. [step] If you're in school together, talk to her in class. If you have mutual friends, talk to her whenever that group gets together. <sep> (A) Most guys just like girls that have something in common. Being more than friends means more opportunities to develop interests. (B) If you don't, ask if there are other friends you can hang out with. Though making contact is difficult, if you're hanging out as a group, you can start if you form a strong bond with her. (C) You don't have to make a big deal about it-just say hello and smile at her. Ask her how she's doing, and strike up a conversation. (D) Talking with her in front of other guys is a great way to showcase your boyfriend's love for her. She'll start to see your declaration as an admission of love and to get to know you better, too.

Output: C


Input: Consider Input: [header] How to homeschool your children [title] Establish your home education legally. [step] In the us, each state has different laws and regulations regarding home-school. Generally speaking, new england has the most stringent requirements. <sep> (A) Before you jump in, research your state's laws and give them the required notice, in addition to making a checklist of future deadlines for yourself (if applicable). [substeps] Since home educators have a personal investment in ensuring they understand the homeschooling laws correctly, local support groups are often the best resource to steer you to the most accurate legal information in your area. (B) [substeps] In certain sections of the united states, there are strict standards regarding homeschooling (ibu). Children under a special educational standard (weoi) must be homeschooled for 36 months at a minimum. (C) However, the only exceptions to these expectations are california, texas, and iowa. [substeps] California, for example, has a strict deadline for homeschooling children 2-4 years of age from birth. (D) Family education is governed by both washington and ohio. Whether one parent or two children agree on a student curriculum is largely dependent on the law in each state.


Output: A