Find the largest possible set of tuples which when added to B, gives tuples of A

Question

Why is it interesting to divide a table A by B?

Accepted Answer

to find the largest possible set of tuples which when added to B, gives tuples of A

Answer

to eliminate the smallest possible set of tuples in A which when added to B, gives tuples of A

Answer

to eliminate the largest possible set of tuples in A which when added to B, gives tuples of A

Answer

to find the smallest possible set of tuples which when added to B, gives tuples of A

Question from the Database - Fundamentals test