[Poll] Can Bol4 achieve an A+ among female singers? Possible or Impossible?

Poll Criteria: Hit songs, Star power, Public perception (not personal opinion)
I personally think they are capable of S-tier based on these criteria,
but I lowered it to A+ to avoid heavy backlash.
Hit songs: Galaxy, Some, Travel, To My Youth, My Only Spring, You Want to Go See the Stars?, Can We Become Strangers?, Me & You from the Beginning, Workaholic, Butterfly and Cat, Love Story, and countless others.