In 2005, the United States and Canada had a higher crude death rate than Mexico because they Question 2 options:

had a higher standard of living

had more elderly people

spent more on healthcare

received more immigrants

are larger countries

Answer primary waves;

Idk idk idk idk idk idk idk

It's either  a. chiang kai-shek and the nationalists turned against the communists and killed hundreds of them. orb. hundreds of peasants were killed in shanghai during the period of warlord rule.  if we take into account that there was warlord rule at the time, i think that it's b (not entirely sure though)just my best thoughts.