These students are demonstrating gender segregation in which an individual is likely to enforce or decide of having to separate with other genders. This could be seen above as boys does not want to play with the other gender which are the girls and prefer to play with themselves alone.
The answer is b
The Europeans set boundaries by geography
People were able to make trips in hours that used to take days. the car also brought up the production of gas stations, hotels, & restaurants.
The argument for practical education was strongly criticised by the Christian missionaries in India in the nineteenth century.
Your answer to your question i think is B.)