i would think A? before taking my answer maybe wait for a second opinion :)
Prepositions are the words which create the relationship between noun and pronouns. Usually, they are used in front of pronouns and nouns. Prepositions are the word such as, at, on, in, after and so on. These words help in describing the position of something, the time when something happens and the way in which something is done.
Sentences which uses the prepositions correctly are:
A. The school bus finally arrived at the museum. - The preposition 'at' describe the place or position of the bus where it has arrived.
C. For years, my parents differed from each other on politics- here the preposition 'for' indicates the time or duration.
Where is the story to this
Answer:
Information that line graph can show is changes over time.
