The correct answer is: C. Tools
The spelling dialog box can be involved by choosing spelling from the Tools menu. This is because the Tools menu contains a variety of tools that can be used to edit and format text. The spelling dialog box is one of these tools, and it can be used to check the spelling of a document.
The other options are incorrect because they do not contain the spelling dialog box. The Insert menu contains tools for inserting objects into a document, the File menu contains tools for managing files, and the View menu contains tools for changing the appearance of a document.