I believe it is C, because is says something they both want, and the question is asking for a comparison.
You forgot to put the rest of the problem,
Answer:
C. As a practicing physician, I know this new treatment works.
Hope this helps.....
1. Noun Phrase
2. Not a Noun Phrase
3. Noun Phrase
4. Not a Noun Phrase
The underlined group of words in the first sentence “my grandmother” <u>is a Noun Phrase</u> which has the syntactic function of direct object. The underlined group of words in the second sentence “The team decided” is made up of a Noun Phrase, but it also includes the verb “decided”. The underlined group of words in the third sentence “Pizza with mushrooms and peppers” <u>is a Noun Phrase</u> which has the syntactic function of Subject. The underlined group of words in the fourth sentence “all around the school” is a prepositional phrase which has the syntactic function of adverbial of place.