Answer:
The description corresponds to an observational study.
Explanation:
In Observational studies, researchers observe the effect of a risk factor without changing what is exposed to it or its conditions. On the other hand, in an experimental study, researchers can introduce a change and study the effects of it.
1. It was the first college to allow African Americans and women to attend
2. The first text book used in America
3. He created a sales tax to fund schools.
Hope this helps!!
The answer is A. For the questions
The first one is that right
I believe that the answer is (B) the consumer appeal. I hope this helps. Have a nice day:)