The conflicts between Mortenson and Haji Ali include _____.

A、Mortenson thought the villagers are not working hard to build the school.
B、Mortenson thought the construction progressed too slowly while Haji Ali considered Mortenson was pushing people too hard.
C、Mortenson wanted to get the school finished while Haji Ali was in no hurry.
D、Haji Ali thought Mortenson didn't provide enough money for them to build the school.