Please answer in detail. Thank you in advance.

2. Consider the following set of frequent 3-itemsets: 1,2,3, ,2,4, ,2, 5;, 11, 3,4), 11, 3, 5), {2,3, 4), {2,3, 5,, (3, 4, 5) a) List all candidate 4-itemsets obtained by candidate generation procedure in the Apriori b) List all candidate 4-itemsets that survives the candidate pruning steps of the Apriori algorithm