A well planned family would be a family that has everything planned out. They not short on money and they have good jobs and maybe a couple kids
<span>D. The girls, overwhelmed by the sale, bought many shoes.</span>
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>
I haven't read Fahrenheit 451 in a very long time, but I do remember this part. I think a possible reason as to why the author does this is to start creating conflict and introduce the real turning point of the story, when we find out what the real problem is. Hope this helped.