The correct option is D Southerners were convinced that the North supported Brown's raid and that the Republicans had financed the raid
Southerners were convinced that John Brown’s raid revealed the
North’s true intention to promote a slave revolt to destroy the
South. southern leaders also singled out the Republican Party
and abolitionists as groups that provided financial resources for
the raid. The South was also angry because northern abolitionists
did not condemn John Brown but hailed him as a martyr.
Most moderates in the North and Republican leaders condemned
Brown’s raid, and southern Democrats still hoped that
they could work out a compromise with northern Democrats.
At the nominating convention, President Buchanan made no
attempt to meet with northern and southern congressional leaders
to discuss the slavery controversy.