Question

Find set Upper A prime intersect Upper B prime
Upper U equals StartSet 1, 2, 3, 4, 5, 6, 7 EndSet
Upper A equals StartSet 3, 4, 6, 7 EndSet
Upper B equals StartSet 2, 4, 6 EndSet
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Part 1
Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice.
A.
Upper A prime intersect Upper B prime equalsStartSet nothing EndSet
  
​(Use a comma to separate answers as​ needed.)
B.
Upper A prime intersect Upper B prime is the empty set.

Answer 1

A is correct.

A' = U \ A = {1,2,5}
B' = U \ B = {1,3,5,7}
A' ∩ B' = {1,5}