Answer:
a. Sheree has been asked to speak about social security to a mixed group of college students, business people, and senior citizens.
Explanation:
Social Security is a program run by the United States, wherein, taxes are collected so as to help senior citizens, retirees or disabled people during old age. When Sheree delivers her speech to the mixed group of students, business people, and senior citizens, she would need to understand that her audience have different degrees of understanding, so she would need to be careful with her choice of words.
The subject itself is a dicey one as many might have different ways they view it. Now also, she must take care not to inflame the audience.
