Which of the following has created the most conflict between north and south korea?
a.
north korea's limits on its citizens' freedoms
b.
south korea's increased democracy
c.
north korea's continuing effort to make more nuclear weapons
d.
south korea's decision to ally itself with china

i believe the answer would be c.

explanation:

i say this because the other options just aren't applicable.

hope this lil bro.

they could find out our specific needs.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."