C. I know the answer because I’m part Jewish
Roman roads were a vital part of the development of the Roman state, from about 500 BC through the expansion during the Roman Republic and the Roman Empire. Roman roads enabled the Romans to move armies and trade goods and to communicate. The Romans became adept at constructing roads, which they called viae. Therefore advancing Rome greatly.
The correct answer is B. Trust, competence and ethos.
The speaker will inspire credibility from the audience when it perceives his or her character and their ethos concerning the topic they are presenting. If they know it really well, they will speak with authority, which will engender trust. Their competence is manifested and it's easier for the audience believe and received what it's being conveyed.