Classical civilizations erected monumental sculptures, such as obelisks and stelae, to do all of the following except:
a. mark the location of royal graves.
b. communicate history to future generations.
c. demonstrate the power and wealth of their rulers.
d. protect their cities from enemy invasion.

Read this excerpt from "we shall overcome." hundreds of thousands of people sang them. but sometimes, it was one lone person with a guitar. they sang in segregated bus stations, picket lines, freedom marches, concert stadiums, city squares, and videos. when injustice of oppression threatens, people sing protest songs to proclaim their resistance, publicize their cause, and encourage hope for a better future, based on this excerpt as an introductory paragraph, which of the following would you expect to read about in the article? different groups of people who were oppressed the ways that music brings diverse groups of people together similarities between historical movements that provided rights for groups of people different song styles throughout specific historical events

May someone me answer these questions

Acredible source is one that is (4 points) select one: a. with bias b. not useful c. persuasive d. trustworthy