The professional consequence
Temporary caves and tents. The reason they were temporary was because they had to go look for food in other places
I believe it is A, because of the education that could now be explored at universities.
One reason could be that since England has colonized most of the countries in the past, the English language has been spread around. Another reason would be since English speaking countries like the US and Britain are powerful economically, knowing English is very important when making trades and business deals.
I guess you just have to search it up loll