Select the sentence that is complete and properly punctuated. a. from 10% to 20% of school-aged children develop intense anxiety over some issue for instance children with school phobia feel intense apprehension about attending school. b. from 10% to 20% of school-aged children develop intense anxiety over some issue, for instance; children with school phobia feel intense apprehension about attending school. c. from 10% to 20% of school-aged children develop intense anxiety over some issue, for instance, children with school phobia feel intense apprehension about attending school. d. from 10% to 20% of school-aged children develop intense anxiety over some issue; for instance, children with school phobia feel intense apprehension about attending school.

The sentence that is complete and properly punctuated is D. From 10% to 20% of school-aged children develop intense anxiety over some issue; for instance, children with school phobia feel intense apprehension about attending school.

Explanation: Sentence D. is the only one that is complete and properly punctuated because it expresses a full idea and makes a good use of punctuation marks. Punctuation rules state that, when using "for instance" in a sentence, a semicolon must precede this term and a comma must come after it. In that way, as D. is the only option that includes a semicolon before "for instance" and a comma after it, this sentence can be considered properly punctuated.

in the quotation from passage, connie willis states that literature is a way for authors from the past to communicate with readers of today. we can read their stories, books, and other texts to learn lessons about life. willis refers to these lessons as messages “from beyond the grave.” willis has a favorable viewpoint about the timelessness of literature.