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 large group of people are seen moving around on exercise bikes. the group <sep> (A) kicks around one another while others watch on the side. (B) move together while the camera pans around. (C) moves around the road and jumps on and off the exercise bikes. (D) rides around, bumping into one another.

Ex Output:
B


Ex Input:
[header] How to become a journeyman electrician (us ) [title] Familiarize yourself with possible lines of work. [step] Journeymen electricians install electrical systems in homes and businesses. They inspect and repair wiring, transformers and circuit breakers. <sep> (A) As a journeyman electrician, you could work as an outside lineman or an inside wireman. Once you have worked as a journeyman for a period, you can eventually become a master electrician. (B) The specific skills required will vary according to the job and the area. [substeps] Apprenticeship law permits journeyman electricians to complete eight years of apprenticeship courses. (C) Whatever the position you do as a journeyman electrician, as long as you understand the skills necessary to work in a home and hire an electrician to work under your supervision, you're considered a professional. This is where your skills and training developed as an apprentice come in handy. (D) How you would start as a journeyman electrician can greatly impact your career in the future. [substeps] Begin practicing as soon as possible, and work your way up on the ladder.

Ex Output:
A


Ex Input:
[header] How to clean an imac screen [title] Shutdown and unplug your imac. [step] Click the apple icon in the upper left corner of your imac screen. Then click " shut down. <sep> (A) " if you have an ios device older than the ios 6.7 os or bigger, this can be done by clicking " apple device manager " or clicking " devices " from your device's dock. [substeps] Turn off the device you're going to use the cleanest find-appropriate system cleaner. (B) " turn off your apple screen (which you have accessible through your ios device). [substeps] If you don't have an ios device, you can plug one end of the usb cord into the port on the outside of your ios device. (C) " unplug the power cord from the back of your imac. [substeps] Additionally, unplug any other devices that are connected to your imac like speakers and hdmi cords. (D) " [title] Press and hold the power button. [step] Once it turns off, press and hold the power button until the apple logo appears.

Ex Output:

C