Lecture 6 -- 3 In the Apriori algorithm, assume the set {2, 4} has a frequency that is lower than a required threshold. Given {1,2,3} and {4,5,6}, which of the following sets with four elements are created by Apriori? Question 14Answer a. No options are suitable b. {1, 2, 3, 6} c. {1, 2, 3, 4} d. {1, 2, 3, 5}