It's D with the Industrial Revolution it was possible to develop new technology, people needed to be instructed on how to operate machines, more machines allowed people to have more free time to create more technology, develop new medicine, develop plantations to mass produce food to people, so a poor person today has more comnfort than a slave in ancient Rome or even the nobility,surely there is the bad aspect like pollution, accumulation of trash and global warming for instance.
It is not A because there are stilllots of issue regarding the difference of payment between men and women.
It is not B because even in countries like the US there are still poor people.
It is not C because these policies tend to ruin a country's economy, for instance Venezuela which has petroleum was relatively rich in the 90s and now suffers from an extremely interventionist government.
