It helped bring about a cultural change
“We are at the end of our string. There is nothing more we can do.
The answer
D
Explanation
It is what the answer said it is
It is the theory that knowledge comes primarily from the sensory experience
The Russian Empire was compromised of a vast amount of lands, so subsequently there are dozens of different ethnicity's across it including the Bashkirs, Yakuts, Nogais, and etc.
