Answer:
The slave economy had a certain influence on the increase in sectional tension in the pre-war period.
Step-by-step explanation:
Sectional tension in the pre-war period was mainly due to divergences in economic policies between the southern and northern states. Southern states felt harmed by the policies imposed by northern states, while northern states were unwilling to negotiate softer policies.
In addition, the northern states disapproved of the southern states' mode of production. This is because the southern states maintained a production of agricultural products based on slave labor.
The northern states, in addition to not approving slavery as a form of production, believed that slaves, if freed, could be used as industrial labor.
All of these reasons increased tension between states, which culminated in the war of secession, after Abraham Lincoln was elected president of the country.