GMAT Sentence Correction (SC) | Scientists are increasingly descending upon the small town

Scientists are increasingly descending upon the small town of Twinsburg, Ohio once a year for itsTwins Days Parade, which is consistent with a growing appreciation in the scientific community for twin research.

A. Twins Days Parade, which is consistent with a growing appreciation in the scientific community for twinresearch

which can only refer to noun. which can refer to "Twins Days Parade" and the meaning doesn't make sense. -Incorrect

B. Twins Days Parade, a phenomenon consistent