Which Statement Accurately Describes Why That State Refused to Join

Which statement accurately describes why that state refused to join the Confederacy?

A) Delaware was mainly a nonslaveholding state that had no desire to be part of a slave Confederacy.
B) Missouri's citizens were united in their loyalty to the Union and in their belief that an independent slave confederacy could not survive.
C) Virginia's nonslaveholding eastern part of the state refused to secede with the western part ¾ which named itself West Virginia when it joined the Confederacy.
D) Maryland's popular politician, Hannibal Hamlin, had just been elected vice president.
E) Kentucky had a Unionist legislature whose resolve was strengthened by the presence of Grant's troops across the river in Illinois.