If A = set of letters of the word BOOK and B = {O, B, K}, then
A and B are disjoint
None of the above
A and B are equal sets
A U B = 0
If A = { set of letters in the word BOOK} and B ={a, e, i }, then A and B are _________.
If A = {set of letters of the word FLOW} and B = {set of letteres of the word WOLF}, then A and B are equal sets.
If A = {letters in the word BOOK} and B ={a, e, i }, then A and B are _________.