Subscript text is characterized by which of the following?

Subscript text is defined as text that appears slightly below the normal line of text. This formatting is commonly used in mathematical and scientific contexts, particularly when notating chemical formulas, where it indicates the number of atoms of an element in a molecule, such as in H₂O, where the "2" is the subscript showing there are two hydrogen atoms.

Understanding this characteristic helps differentiate subscript from other text formats. For example, raised text above the baseline would be considered superscript, which is often used for exponents. The options related to text being replaced with symbols or increasing font size do not accurately describe the nature or function of subscript text, further highlighting that subscript's unique quality is its positioning slightly below the standard text line.