List All Subsets of the Following Set $\varnothing$ {6}, {7}, {8}, {9}, {6, 7}, {6, 8}, {6, 9}

Multiple Choice

List all subsets of the following set. K = {6, 7, 8, 9}

A) {6}, {7}, {8}, {9}, {6, 7}, {6, 8}, {6, 9}, {8, 6}, {7, 8}, {7, 9}, {8, 9}, {8, 7}, {6, 7, 8}, {9, 7, 6}, {6, 7, 9}, {6, 8, 9}, {7, 8, 9}, {6, 7, 8, 9}
B) $\varnothing$ {6}, {7}, {8}, {9}, {6, 7}, {6, 8}, {6, 9}, {7, 8}, {7, 9}, {8, 9}, {6, 7, 8}, {6, 7, 9}, {6, 8, 9}, {7, 8, 9}, {6, 7, 8, 9}
C) $\varnothing$ {6}, {7}, {8}, {9}, {6, 7}, {6, 8}, {6, 9}, {8, 6}, {7, 8}, {7, 9}, {8, 9}, {8, 7}, {6, 7, 8}, {9, 7, 6}, {6, 7, 9}, {6, 8, 9}, {7, 8, 9}, {6, 7, 8, 9}
D) $\varnothing$ {6}, {7}, {8}, {9}, {6, 7}, {6, 8}, {6, 9}, {7, 8}, {8, 9}, {6, 7, 8}, {6, 7, 9}, {6, 8, 9}, {6, 7, 8, 9}
E) $\varnothing$ {6}, {7}, {8}, {9}, {6, 7}, {6, 8}, {6, 9}, {8, 6}, {7, 8}, {7, 9}, {8, 9}, {8, 7}, {6, 7, 8}, {9, 7, 6}, {6, 7, 9}, {6, 8, 9}, {7, 8, 9}, K