He tells John that he would like the "experiment" (of John living in London society) to continue. In other words, he is interested in continuing to experiment with John's life at John's expense.
Representative democracy is a type of democracy founded on the principle of elected officials representing a group of people, as opposed to direct democracy.
It is also called indirect form of government.
I believe the answer is D.
Phosphorus cycles through plants and animals much faster than it does through rocks and sediments. When animals and plants die, phosphates will return to the soils or oceans again during decay. After that, phosphorus will end up in sediments or rock formations again, remaining there for millions of years.
