What was the "popular sovereignty" doctrine, and why did Senator Stephen Douglas push it forward in the Kansas-Nebraska Act? Why did the Kansas-Nebraska Act set off the fiercest round of sectional antagonism?

Why did the crew of the zong ship throw some captive africans overboard? a. there was not enough space in the ship. b. the captives’ deaths were covered by insurance. c. the ship did not have adequate food. d. the ship did not have sufficient crew to care for the sick captives. e. the african captives rebelled against the crew.