C because it's following a noun
Okay. I cannot see the article, again but will try my hardest to answer this anyway.
The purpose can usually be seen in the first sentence or paragraph (unless you have an excerpt). Though it may not be too specific it will usually be backed up by evidence later in the passage. A purpose can always be proven by text details.
Choice of details: should support the purpose
organization: Some things are good for some purposes.
e.g. cause effect, shows the good or bad effects of a purpose. The author can support the purpose or no.
chronological can show how something has changed over time.
etc.
Try to identify the main structure and how the passage is organized and how it supports the main idea.
Answer: Below, the bold words indicate prepositional phrases. Only these sentences contain prepositional phrases
The man in the house seemed to be asleep.
The soldiers crept cautiously through the tunnel.
I was informed that the bus would arrive in 45 minutes.
Explanation:
Prepositions are connecting words that act like bridges (For example with, after, in, to, between, around, beneath, under etc) . Preposition can show things like time place and movement. A prepositional phrase is a group of words that beings with a preposition and ends with the object of the preposition.