The antislavery movement raised and grew because people kept finding reasons for why slavery is bad. This eventually led to conflict between people against slavery and people for slavery. Another reason why the antislavery movement raised and grew was because slavery has become less useful overtime, as we have machines.
Anti-foreigner sentiment in china led to the boxer rebellion
"b. They opposed them by <span>charging that they were unconstitutional" is the best option since this group considered the acts to be a serious violation of their rights as citizens, even in times of war.</span>