There Is Much to Be Said About, and Learned From

There is much to be said about, and learned from, the variety of ways that people in developing countries approach the subject of social entrepreneurship and its practice as well. Context plays a crucial role in shaping this. Which differences cause considerable variation from country to country and across world regions?

A) Differences in culture.
B) Differences in the legal system.
C) Differences in the economy.
D) All three answers apply.