It is the word "and" in the sentence.
<span>C. selective colleges.
</span>
Answer : Runners-up
The plural form of the word runner-up is runners-up. The plural form of a hyphenated compound word is done by pluralizing the main element of the word. If the main element of the word is not a known, the second element can be pluralized. However, in this case the first element is runner and that is noun meaning we pluralized the runner into runners making it "runners-up". Other examples of pluralized hyphenated compound word are fathers-in-law, lookers-on, editors-in-chief and a lot more.
B. adverb clause
Only one of the sentences contain an adverbial clause. I lay out the explanations below.
<span>(A) NO ADVERBIAL CLAUSE. "Where I could get some coffee" is part of a reported speech. </span>
<span>(B) NO ADVERBIAL CLAUSE. "What she pointed out" is a noun clause. </span>
(C) NO ADVERBIAL CLAUSE. "How to invest my money" is the direct object of know; hence, it's a noun clause.
<span>(D) </span>"Where they can find food easily"<span> is an example of an adverbial clause. It is an adverb of place, answering the question: Where do most animals thrive?</span>
I’m unsure if you even can, does it say u can anywhere. maybe worth googling?