The answer is “She is sympathetic to others”
It makes them more avalible as with free enterprise means more buisnesses and more competition and thusly more products avalible with more options to choose from
A.) - it is also known as the agricultural revolution, so this is definitely true.
b) - this is true, this is how it was possible
c) - this is also true! together with the cultural revolution came the domestication of animals
d) - this is false, on the contrary, it made people more independent.
the reason they did it was for economic reasons