An objective tone give factual information and it does not include the point of view or any sort of information from the author, it reduces to present the events as they happened within the narrative, this passage is giving real and formal information about the political movements of France during their revolution, from the motives to the results.
Well. this one is tricky. Personifies is another word for "personification" which gives objects human traits. So the answer is C. calmness and solace. because people have to be calm and solace means comfort. calm and comforting.