Which heading best completes the partial outline below?

a. disputes over tariff rates
b. introduction of slavery into the territories
c. demands of abolitionists
d. disagreements over states rights
(1)reasons for the american system
(2)successes of third political parties
(3)causes of sectionalism
(4)justifications for economic reform

some women in the middle and upper classes worked as doctors, government officials, or priestesses. both women and men enjoyed a better quality of life the higher they were on the social pyramid. the egyptians believed that their class system created a stable, well-ordered society. each group had its own role to play.

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation: