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.
The correct answer is D, this is 'present perfect' tense. It is formed with the use of the verb HAVE in present simple tense (so, HAVE/HAS), and the past participle of a verb (or the third column of irregular verbs).
A cannot be correct, because then it would say - I hear.
B cannot be correct, because then it would say - I had heard.
C cannot be correct, because then it would say - I heard.
And since there is also HAVE HEARD, the correct answer has to be D.
Answer:
Free verse is your answer!
