Which type of text complexity feature can be quantified, such as sentence length?

Quantitative features of text complexity are measurable aspects that can be represented numerically, such as sentence length, word frequency, or the number of syllables per word. These features provide objective data that can help educators assess the readability and difficulty level of a text.

In contrast, qualitative features typically involve subjective elements like the themes, language, and structure, which require interpretation rather than numerical assessment. Numeric features, while they may suggest a measure like word counts or readability scores, do not specifically address the broader context of complexity quantified in traditional ways. Textual features refer more generally to the characteristics of a text but do not specifically mean numerical or measurable attributes.

By focusing on aspects such as sentence length, the correct answer highlights the quantitative nature of certain text characteristics that can assist educators in evaluating and selecting appropriate reading material for students.