Which of the following did the Organic Act establish?

A. tribal reservations

B. seven counties in Oklahoma Territory

C. laws that dealt with squatters

D. the Cherokee Commission

I think it established 7 counties in Oklahoma Territory

It seems like the answer is B, the organic act is an act of the United States Congress that establishes a territory of the United States or an agency to manage certain federal lands. But that doesn't seem to be an option here.