Which two of the following sentences from the
article support central ideas?
1. The law gave the new Western
territories the right to decide on
their own whether to accept the
practice of slavery.
2. The Missouri Compromise had
outlawed slavery in all territories
north of Missouri's southern
border, except for Missouri itself.
3. The South was determined to
have Kansas become the 16th
slave state, and the North proved
equally determined to keep
Kansas free.
4. Soon afterward, a pro-slavery
posse descended on Lawrence,
and proceeded to sack the town.

The options are:
A) 1&3
B)1&4
C)2&3
D)2&4