Which of the following best describes 'text alignment'?

Text alignment refers to the positioning of text within a document or a text box in relation to the page or the available space. This can include aligning text to the left, right, center, or justifying it, which means adjusting the spacing so that the text aligns evenly along both the left and right margins. Understanding text alignment is essential for creating visually appealing and readable documents, as proper alignment helps to establish a clear structure and flow.

The other options focus on different aspects of text formatting rather than alignment. Formatting characters in bold or italic deals with changing the weight or style of the font for emphasis. Changing font sizes pertains to adjusting how large or small text appears but does not affect its alignment. Embedding images into text involves incorporating visual elements rather than manipulating how the text itself is positioned. Each of these processes is important in formatting documents, but they do not define text alignment.