Which Phrase Best Defines "Fuzzy Logic

Which phrase best defines "fuzzy logic?"

A) thinking in vague terms that are not logical and don't make sense
B) understanding that real-world patterns don't always match remembered patterns and must be recognized and clarified
C) recognizing false patterns as significant and important, then using logic and reasoning to make them seem meaningful
D) understanding that random patterns can be misunderstood and must be recognized as significant and meaningful