1. We can combine sentences with an adjective if they are talking about the same noun.
Adjectives modify nouns.
2. We can combine sentences with an adverb if they are talking about the same action.
Adverbs modify linking verbs and action verbs.
3. We can combine sentences with a prepositional phrase if they are talking about the same location.
Prepositional phrases show where an noun is. In other words, it shows the location of the noun.
Pretty sure it’s the plumbing system
If your choices are the following:
<span>A.When you were in school, you got to take a wide variety of electives, and you grew up to become members of the school board!
B.A poll of the student body shows that 88 percent of struggling students feel more motivated to come to school because of their electives. 
C.I am a straight-A student, and my art class is one of the best parts of my day. Without it, I wouldn't look forward to coming to school.
D.You might not remember this, but teenagers don't like being forced to spend all their time studying boring subjects.
So the answer, for me, would be </span>B.A poll of the student body shows that 88 percent of struggling students feel more motivated to come to school because of their electives.  This will give a proof about my claim.
Answer:
D. representing the interests of large numbers of people and encouraging political participation
Explanation:
Even though interest group often have a bad reputation due to their power to control government officials with their monetary donation, it actually a great medium to encourage political participation among citizens.
Citizens who have a same principles could form their own interest group and help to promote government officials that represent the same principle as them.
