The first sentence is a declarative sentence which show an initial thought. The second is an interrogative which questions the thought. And the last is an exclamatory sentence which reaffirms the initial thought.
Answer:
Option 3
Explanation:
Dr. King ended the speech to enthusiastic cheers and applause; many in the audience felt the dream of freedom he spoke of would one day come true.
There would be a greater chance that their information was accurate was such a vast number of people the outcome would be much more accurate than a small number such as 100