Every kind of work, school, and even religion needs calendars too keep on track!
The answer is:
A. shame those acting foolishly or immorally
D. caution audiences or readers about foolish or immoral behavior
Satire is the use of humor, exaggeration or mockery to expose, criticize and indicate other people's flaws or stupidity in a disapproving manner, especially in politics and corruption. As a consequence, it makes something or someone appear ridiculous and makes the audience reflect on society's vices.
C. over a period of six months, the turbine produced up to 211 gallons of water per day.
All of the above, these are all reasons why people do research! Hope this helps!