Which of the following pairs of words is an example of nuance?

How was slavery in mesoamerica, africa, and the arab world similar? many enslaved people were forced to pledge loyalty to their owners. many enslaved people worked in exchange for protection from foreigners. many enslaved people were captured during war. many enslaved people taught and tutored children.

Moral principles is what ? a. appreciation b. tariff c. fiscal d. ethics

True or false president andrew johnson granted pardons to thousands of southerners.