Which description defines uppercase text?

Uppercase text is defined specifically as text that is written in capital letters. This form of text emphasizes all characters being in uppercase, distinguishing it from lowercase letters or any combination thereof. It's commonly used for titles, headings, or to convey shouting in written communication.

The other descriptions do not accurately capture the essence of uppercase text. Text written solely in bold font pertains to the weight of the text rather than its case. Standard size refers to the font size rather than whether it is composed of uppercase or lowercase letters. Lastly, text containing both capital and small letters does not qualify as uppercase text, as it implies a mixture of cases rather than a uniform use of capital letters.