What is capitalization in text formatting?

Capitalization in text formatting refers to the practice of writing text using initial capital letters or all capital letters. This technique is commonly used for emphasis or to denote titles and headings.

For example, the first letter of a sentence is typically capitalized, and proper nouns such as names of people or places are also capitalized to distinguish them from common nouns. In some contexts, such as signage or titles, text may be fully capitalized to grab attention and signify importance.

Other options describe different aspects of text formatting that do not relate directly to the use of capital letters. Lowercase letters represent the opposite of capitalization. Different font sizes pertain to the overall size of the text rather than its case. A bold style refers to the thickness of the text characters, adding emphasis but not altering whether they are capitalized or not.