<span>i suppose that would be 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.</span>
Answer: The sentence that is complete and properly punctuated is <u>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.</u>
Explanation: <u>Sentence D</u>. is the only one that is complete and properly punctuated because it <u>expresses a full idea </u>and makes a good use of punctuation marks. Punctuation rules state that, <u>when using "for instance" in a sentence, a semicolon must precede this term and a comma must come after it.</u> In that way, as <u>D. is the only option that includes a semicolon before "for instance" and a comma after it</u>, this sentence can be considered properly punctuated.
They can work hard to achieve the goal or do the action. Some people may in this way if they are under great deals of stress. They may lash out on people around them. By how they act to a subject.