They could get to know each other without supervision.
and
They had a cheap fast mode of transportation to go to places and to get to school, home and work without the expense of a car.
fol·li·cle
noun
1.ANATOMY
a small secretory cavity, sac, or gland.
2.BOTANY
a dry fruit that is derived from a single carpel and opens on one side only to release its seeds.
The Enlightenment differed from Romanticism in many ways. First, The Enlightenment placed immense importance on thoughts and reasoning while Romantics focused on emotions and self- experience. The Enlightenment poets were dexterous in using true-life events to create realistic works depicting an illusory individual.
The right answer is the increase of agricultural output, the Ming dinasty ruled China for almost 300 years (1368-1644) and enjoyed stability and prosperity, reforming the government and making more efficient use of the land, one of the things that made this increase possible was taxes, what excludes the third option. As for the first option, Ming government persecuted to some extent Christian and Muslims communities, and for the fourth, Tokugawa was a dinastic government in Japan, not China.
C. If you wanted to keep going the order would be C, A, B, D.