Why was the Church the final authority with regard to knowledge during the Middle Ages?

It was basically the only souce of info they had back then.

Explanation:

In the middle ages, most people (unless you were a monk, nun, ect) were illiterate, and relied on the church for information and laws. People then were devoutly Catholic/Christian so people's trust in the Church was strong (until the protestant revolution).

several states had passed similar laws, but they were limited to intrastate businesses. the sherman antitrust act was based on the constitutional power of congress to regulate interstate commerce.

you answered my friends question just to get the coins you didn't even give a valid response.

i think the answer's are a) b) and c)