Answer:
C: John, you look sick. What's wrong?
Explanation:
While all the other sentences only manifest opinions, suggestions, and decisons already made concerning John's condition and care, even some despair, the sentence in C, besides mentioning his appearance, also allows John to<em> express what or how he is feeling by asking</em> 'what's wrong?', which is a form of <em>dialogue</em>, and the inclusion of someone's opinion.
A stanza is a group of lines in a poem (I've seen from 4-8 lines) that the poet can use to establish his/her rhyme scheme and move the poem on through its story. This may not be exactly what you're looking for, but good luck.
