Which of the following does not describe the slave trade as it existed in africa by 1700? a. more than one-third of slaves died before reaching the coast because of thirst, disease, or exhaustion. b. british merchants transported slaves to caribbean sugar plantations and to britain's colonies in north america. c. the spanish, portuguese, french, and dutch also participated in the transatlantic slave trade. d. slaves were treated humanely on the sea journey to the americas to make sure the maximum number survived.