These are needed to show a speaker's or writer's precise words, to name titles and to set off definitions.

as much wood as a woodchuck could chuck if a woodchuck could chuck wood.

sadly it cannot chuck wood

answer: to inform

explanation: the red death is an exciting passage, but also in some ways scary, so it is not to amuse. the red death is far in the past, so it is not to warn.

first person

explanation:

the sentence that best describes the tone of the passage from the radio broadcast compared to the passage from the book is b. the radio broadcast has a more surprised tone.

consider the text evidence: in the passage from the book, the description is more matter-of-fact. it is simply describing the things resembling little grey snakes, but there is no urgency in the description. on the other hand, in the passage from the radio broadcast, there is definetely urgency (you can tell from the expression used, "good heavens", which clearly indicates surprise.)