Russia, United States, Japan
I think it's C cuz this was the British disadvantages
Most likely because in poor, rural areas, public schools are scarce/ not easily available, and so sending a girl to school is not as prioritized as sending a boy to school, since a boy can start working and be a "breadwinner" for the family sooner than a girl.
Answer:
I believe the answer is B.
If you have any more questions, Please watch a channel called "OverSimplified" they make great videos on this type of subject
Railroads helped connect the east and the west