How can text be formatted to bold?

Formatting text to bold enhances its prominence within a document, making it easier to emphasize key points or headers. The correct answer includes multiple methods that are commonly used across various word processing software.

One effective way to bold text is simply by clicking the Bold button once in the formatting toolbar. This provides a straightforward and quick visual method for users who prefer to use the mouse for formatting tasks.

Another method involves highlighting the text and using the keyboard shortcut Ctrl + B. Keyboard shortcuts are highly efficient, allowing users to apply formatting without having to navigate through menus, which can save time, especially in larger documents.

Additionally, right-clicking the text and selecting 'Bold' is another valid option. This method provides ease of access for users who may be more comfortable with context menus.

Therefore, including both clicking the Bold button and using the keyboard shortcut to achieve bold formatting demonstrates the versatility of options available to users, making answer C the most comprehensive and correct choice.