Use the process of elimination:
D is wrong
C is wrong
A is wrong
So you are right, it is B.
Launched a much more aggressive expansion of Asia <span />
The answe is C. a sharp division among the faithful as to how future leaders should be selected, and what their qualifications should be.
It was their neutrality. They were still in the process of building a country. Setting up laws and meeting the needs of the people were their primary concerns. As much as possible, they avoided conflict as much as they could.