Which of the following is a quantitative measure of text complexity?

Conventions of language refer to the standard rules and practices of grammar, punctuation, and style used in writing. While these conventions can influence readability, they are qualitative aspects and do not provide a numerical measure of complexity that can be consistently applied across different texts.

Knowledge demands pertain to the background knowledge required to understand a text. This aspect is inherently qualitative, as it varies significantly among readers and contexts. It does not lend itself to numerical measurement, thus failing to serve as a direct indicator of text complexity.

Structure refers to the organization and arrangement of ideas within a text. While it can affect comprehension and engagement, it is a qualitative feature rather than a quantitative one. Like knowledge demands, it does not provide a specific numerical value that can be used to gauge text complexity.