Instructions: 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: [header] How to find the best flight simulators for pc games [title] Consider your pc or laptop configuration. Before you are buying flight simulators, you will need to take into account the graphic settings of your pc. [step] The higher the resolution is the better. <sep> (A) Windows also needs to consider the current viability of the game. The higher the resolution, the more difficult your game is to install. (B) [title] Know what kind of software you are using. [step] While a lot of the teamwork in buying flight simulators is done on computers, there is not much you can do with a data connection. (C) [title] Consider flying simulators that work well. [step] These will be used either on windows or macos. (D) Just ensure that the video card and software will be able to deal with the speed and you will have enough memory for running pc games. [title] Take into account your favorite pc games.
Output:
D