The correct answer is: Ecorithms.
Ecorithms are algorithms that learn from their more complex environments (hence eco) to generalize, approximate and simplify solution logic. They are inspired by the way that ecosystems work, where different species interact with each other and with their environment to create a complex and dynamic system. Ecorithms can be used to solve a variety of problems, including optimization, machine learning, and data mining.
Fuzzy Relational DB is a database management system that supports fuzzy logic. It is used to store and manage data that is uncertain or imprecise. Fuzzy Relational DB is a powerful tool for managing complex data sets.
Fuzzy Set is a mathematical set that allows for partial membership. In other words, a member of a fuzzy set may belong to the set to a certain degree. Fuzzy Sets are used to model uncertainty and imprecision.
None of the mentioned is not the correct answer.