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 create a facebook icon using photoshop [title] Open a new document. [step] You can choose any settings as preferred. Press ok when everything is set. <sep> (A) [title] Open the' social' tab on the google photos window. [step] You'll find this panel on the bottom; click it to open a new account. (B) Be sure to set the color that matches your image : [substeps] Cool-keep the background brown and take a dark cover. Cool on the background, and the background transparency will shine through; you can probably do this in the editing tutorial pane. (C) Set the document to the following values : [substeps] Size : 500 x 500 resolution : 72 pixels/inch color mode: rgb color at 8 bit background contents: transparent [title] On tool options, select rounded rectangle tool. [title] Drag mouse on the editor pad to create a rounded rectangle image. (D) [title] Click on messages in the pop-up window. [step] You'll be presented with a list of available accounts.
Output:
C