Which tool in MS Office is used to copy and paste character and paragraph formats to existing text?

The Format Painter in MS Office is the correct tool for copying and pasting character and paragraph formats. It allows users to quickly replicate formatting attributes—like font style, size, color, bolding, italics, paragraph alignment, and line spacing—from one piece of text to another. This feature is invaluable for maintaining a consistent visual style throughout a document. Paste Special (B) is used for pasting content with specific data types or formats, not for copying existing formatting styles. A Text Box (C) is a container for text, not a formatting application tool. Therefore, Format Painter is the precise and most efficient option for this task.