Ethos is a rhetorical device that
a. appeals to the emotional side of an argument
b. establishes credibility and trustworthiness
c. gives useful, straightforward information
d. seeks to adapt well to change circumstances

c

Explanation:

i got it right on plato

the purpose in this excerpt is that you should never do things like that because according to the bible, if you have more than one wife it's wrong and a huge sin. i hope this .

the development of trade during the middle age increased to the change given in the agriculture, which gave money, industry and markets a bigger importance in economy. the agriculture production was more than the consumption, which meant the creation of wider markets out of the areas. besides, with the end of multiple wars, the population increased and new trade routes were created.