Which best describes why an author might employ an allegory?

to develop complex and lifelike characters
to offer insight to the social structure of a society
to praise some personality traits and scorn others
to demonstrate the complexity of the justice system

Read the text of the barack obama speech “remarks by the president at the 50th anniversary of the selma to montgomery marches.” which options best explain obama’s rhetorical purpose in the speech? (select all that apply.) `to celebrate an important milestone in the history of civil rights `to explain to his audience why they should welcome immigrants into america `to inspire and motivate his audience to exercise their right to vote `to inform and educate his audience about the history of social injustice in america