Synonym of aesthetic is artistic..
<span>Subject - Verb - Direct Object
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A. Preposition: over; object of the preposition: bridge
A preposition shows the location of an object, it shows where something is. In this case the preposition is "over" as that is the only word that is showing 'where' something is and thus the car becomes the object.
I would say that the best summary of this paragraph is C) Systems transmitting information across a distance are called telegraphs. The word telegraph originates from Greek words. The world has moved forward since ancient forms of communication, and people now exchange email addresses because of the Internet.