As of 1973, the US had a population of 210, million people, who were increasing by 0.8% per year. etc.
I believe the correct answer from the choices listed above is the last option. It is hypothesis that is a tentative answer to a question. A hypothesis (plural hypotheses<span>) is a proposed explanation for a phenomenon. </span>
Hope this answers the question. Have a nice day.
Answer:
Was
Were seen
Explanation:
Walt Disney WAS a clever businessman. His cartoons WERE SEEN all over the world
