Takugi-Sugeno approach to FLC design is computationally more expensive compared to Mamdani approach because

• A. Mamdani approach considers a less number of rules in fuzzy rule base
• B. Searching a rule in Mamdani approach is simple and hence less time consuming
• C. Takagi-Sugeno approach consider a large number of rules in fuzzy rule base
• D. Computation of each rule in Takagi-Sugeno approach is more time consuming