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 calculate a light year [title] Define the light year. [step] A light year is a measure of distance equal to how far light travels in one earth year. Because distances across the universe are so large, astronomers use light years. <sep> (A) However, they can also be determined by dividing by a distance. [substeps] Some light years are used year-round. (B) For light year 2014, the main determiner is the sun. In the light year, the world is filled with light bulbs. (C) Without light years, discussing the distance between two stars would require the use of large, unruly numbers. [substeps] Another measure of distance you may come across when learning astronomy is the parsec. (D) [substeps] There are two kinds of light years: day and night. The two types of light years are known as night and day.

Output: C


Input: Consider Input: [header] How to buy land in colorado [title] Figure out how much you can afford. [step] Start by using an online mortgage calculator to determine how much you can afford to spend. These calculators normally ask you to input your income and associated expenses (e.g. utilities, other loan payments, etc. <sep> (A) ) by the year in which you obtained the land, and how long you wait for payment. [substeps] Once you have figured out the amount, use that as a guideline. (B) ) in order to find the value of your property as a whole. Consider the following : [substeps] You cannot start with a simple down payment. (C) ), as well as the months that you were unable to make the payments. [substeps] Each time you make a mortgage, you will need to subtract the following from your net expenses: home equity interest, vacation pay, expenses for meals and healthcare (e.g. (D) ) and then will determine how much you can afford to spend on a monthly mortgage payment. These calculations also take into account interest rates, mortgage terms and amortization.

Output: D


Input: Consider Input: [header] How to bake bread machine crescent rolls [title] Add all the ingredients using your bread machine manufacturer's directions. [title] Select the dough cycle. [step] While rolling the dough you can stretch the dough to make more of a wedge shape. <sep> (A) [title] Iron the dough on the bottom of the machine. [step] Make sure the entire bottom is iron-coated with non-stick cooking spray. (B) [title] Pick a bread machine located on either the high or low left. [step] Place your dough cycle into the machine. (C) [title] Arrange the loaves on the pie base. [step] The loaves of dough should be arranged in the pie base exactly as you want them to be in order. (D) [title] Remove the dough from the bread machine. [title] Divide the dough into 3 pieces using a bench scraper or kitchen knife.


Output: D