Madam CJ walker was the first black woman to do what?

according to Wikipedia;"Madam C.J. Walker was an African American entrepreneur, philanthropist, and political and social activist. She is recorded as the first female self-made millionaire in America in the Guinness Book of World Records"

d is the best answer for this question.

the answer is: the start of world war i, and russia’s hopes of benefiting from it

during world war i russian joined due to in their current crisis they were being supported by france and the war was already declared to them by germany, they needed to maintain their political goal and leadership role in the balkans, and is the same feeling that this excerpt evoke the eager of maintain the land value.