Queen Elizabeth never had any children. That's why she is known as the Virgin Queen. But there was a rumor that she did but obviously if its a rumor then A is not an option. The rest of all the answers are correct.
The industrial revolution increased the power and wealth of "factory owners" mostly, but this is a misleading question, since the revolution increased the wealth of practically everyone except the aristocracy.
Serfs may eventually work their way to freedom (usually not), if you know the term tenant farmers, individuals who work on a property with some believe that eventually they may pay their debts off and become a freeman. An enslaved person, will never believe that they will eventually become free.
-My opinion anyway (probably wrong) but worth a try.
