The answer is b because it polar bears will be in a non fiction story and periodical is a magazine or newspaper published at regular intervals.
"All of a sudden..." is a transition that shows suspense. It says something happened, but it didn't happen with any warning and it doesn't tell the reader up front what went on or if it was good or bad.
Answer:
Explanation:(1) C (2) B (3)B
(4) simple four-line rhyme....it makes the poem easy to comprehend.
