Which of the following ideas was the result of Jean-Jacques Rousseau expanding on the social contract theory from Locke's ideas? A. Allowing the king to rule by divine right.
B. Letting the people decide on their own sovereignty.
C. Allowing the monarchy to decide on the welfare of the people.

Which one of the following was not a reason for the emergence of the single-family peasant farm as the basic unit of agricultural production in the early middle ages? select one: a. the mounted soldier made warfare expensive, so many warriors became full-time farmers. b. the declining birthrate made it necessary for entire families to work in agricultural production. c. horses made it easier, although more expensive, for farmers to support themselves. d. it was more economically feasible for landowners to rent their land to farmers. e. villa owners could no longer purchase slaves.