You will be given a definition of a task first, then some input of the task.
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".

[header] How to adjust brightness in gimp [title] Select the layer you want to adjust. [step] After opening your image in gimp, click on the layer that needs adjustment in the layers dock. If you are adjusting the brightness of an image that hasn't been split into layers, the single layer " background " will be selected by default. <sep> (A) [title] Submerge your image in under the layers limit. [step] The layer you selected on the layers dock will be labeled below the layer limit at the top of the layers cinematography window. (B) [title] Open the " brightness-contrast " dialog box. [step] There are 2 ways to open this menu. (C) Drag the x next to this layer into the layer toolbox. [substeps] Inside, click the picture you want to adjust. (D) Note that this layer may alter colors differently in different layers. [substeps] In other versions of gimp, it's okay to use the embed options menu instead.
Output:
B