Add the choices because im doing this story
Most people are comfortable with the idea of a noun, but they may not feel so confident when it comes to the noun clause. A noun clause is a group of words acting together as a noun. These clauses are always dependent clauses. That is, they do not form a complete sentence. Take a look at some sample sentences containing noun clauses to understand their purpose and function.
You're answer is going to be C.
Xenophobia is the hatred or fear of strangers or unusual circumstances/objects. Let us take a look at the provided answers and see which provides the best comparison:
A. hydrophobia : sharks
Hydrophobia is the fear of water. Sharks aren't water, but they live in water. The comparison doesn't exist, so we can move on.
B. bibliophilia : books
Bibliophilia is the love of books, and while there is a bit of a comparison, it is more or less the opposite of the original comparison.
C. acrophobia : heights
Acrophobia is the fear of heights, so there is a definite comparison here with the original. This is most likely correct, but let us examine the last answer anyway.
D. philanthropy : charity
Philanthropy is the compulsion to give money or valuables away to others who may want/need them more than you. In this case, philanthropy and charity are synonyms, so there isn't a real clear comparison to be made.
So your final answer is:
xenophobia : foreigners :: acrophobia : heights
C is your correct answer choice.
Hope that helped =)