'A rose by any other name would smell as sweet' is a quote from Shakespeare's Romeo and Juliet. It means that the intrinsic nature or essence of something is what matters, not what it's called. A rose would still be beautiful and fragrant regardless of its name. Option C is correct. It does NOT mean no other flower smells sweet (A), someone is known by their name (B), or anything named 'rose' smells sweet (D).