Which statement best summarize why the reformation led to religious war? a) the precedent set by the crusade led both catholics and protestants
b)declaration by the pope force d catholics rulers to expunge protestants
c)protestants believed the study of scripture necessitated violent overthrown of non protestant rulers
d)a lack of separation between church and state meant that chalenged to religious authority also necesitated challenges to church authority

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)

a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."

to replace ineffective because   andrew jackson's spoil system was a deliberate policy after he became president to remove federal employees he considered to be political opponents and replace them with his own supporters.