I believe the correct answer is the third one...
Answer:
A
Explanation:
Refrain is a poetic device in which the poet repeat some words or lines at the end of a stanza. This tradition has remained from past, when poems were mostly recited not written, and refrains made a poem easier for listeners to remember. Another purpose is to create a rhythm and make readers or listeners to pay attention to main theme or point of a poem.
Copernicus should be the topic, and the central idea should be how he came up with the heliocentric theory. I hope I helped, please tell me if I am incorrect or if you need more help!
B.Correlative as or is relating one suggestion to the other
Letter B. This part of the presentation is proposing a solution to the problem. Stating that cities and states taxed sugary beverages at a higher rate serves as a solution or probably a suggestion to what a state/city can do so that people will be encouraged to make healthier choices by preferring less costly drinks.