How can a reader trace how an author develops a central idea throughout a text? Check all that apply.

by looking for the denotative and the connotative meanings of the author’s words
by determining the central idea of each paragraph
by identifying the most important details used to support the central idea of each paragraph
by analyzing how the author uses context to convey the central idea in each paragraph
by summarizing the central idea and key details of each paragraph in a single sentence
by finding the common element among the central ideas throughout the text