Well an expository essay is a writing peice that explains your topic or whatever you plan to write about and when you write you can really use any method but it has to sound right and feel right.
Answer:
A: "The beach was full of happy, carefree tourists."
Explanation:
To answer this Question you have to say each answer option out loud, and if one does not sound right, then it is probably Incorrect.
2) Both mars and earth have carbon dioxide ice clouds
Answer:
Adult smoking rates had been dropping for more than 30 years before teenagers began reducing their rates.