How could writing a compare-and-contrast essay you in your everyday life?
a. you are trying to decide between attending college or joining the military.
b. you want to make an essay about photosynthesis be more interesting to readers.
c. you are seeking to convince your principal that students should be permitted to use cell phones on campus.
d. you want to write about the amazing experience you had attending a nasa space camp.

i don't know sorry i cannot read a novel in 30 min.

explanation:

but just in case i think the answer is b.

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.)