Read this excerpt from a student's essay and answer the question below. "having a brother with autism can be really stressful. you never know how he's going to react. it takes a lot of patience sometimes. you love him but sometimes he drives you crazy." what is the best description of the tone in this student sample?

What two elements should be in an essay

Aman lives on the twelfth floor of an apartment building. every morning he takes the elevator down to the lobby and leaves the building. in the evening, he gets into the elevator, and, if there is someone else in the elevator -- or if it was raining that day -- he goes back to his floor directly. otherwise, he goes to the tenth floor and walks up two flights of stairs to his apartment.

What did mark twain contribute to the history of the novel? select all that apply.