I would say beauty because usually when you are showing something and saying it in that way, it is usually something beautiful. hope this helped :)
Depends on what goes on in the novel for example,
War: They might start innocent go to war and as the war goes on the blood shed the death changes him into a cold hearted person.
Romance: They start awkward and then evolve to be more social and fall in love with (*Secondary*)
Number three is the answer
B. to insert at intervals.
Intersperse is a verb, and it's dictionary meaning is: "<span>scatter among or between other things; place here and there."
ie, "the conversation was interspersed with silences".</span>
