Public speaking has been formally studied since:
a. the 5th century.
b. the 20th century.
c. recently.
d. communication courses were offered at universitie

A. the 5th century.

Explanation:

The early study of public speaking was known as rhetoric.

It was first developed in the Classical period of ancient Greece, around the 5th century BC. Traditional rhetoric included insights and rules created by rhetors to train the citizens of the Greek republics and, eventually, the descendants of the rich during the Roman Empire, in the art of public speaking.

explanation:

hi

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so.