B) would be the answer. (Still not 100% sure but hopefully this is correct AND it helps!)
Explanation:
A) The passage has NOTHING about persuading the readers to vote for Jack Snow. The passage just tells info about Jack Snow (and his opponent!)
C) would also not be correct (although it does seem correct!) since that wasn't necessarily the authors purpose. The whole passage (except the end) is about Jack Snow and Tom Oaks, their slogans, their background etc, and only at the end the authors asks the reader to vote. If the purpose of the author was to convince the reader to vote, the author would've mentioned it more in the passage.
