GMAT Test Prep: PS-68673075 GMAT Problem Solving

A = {2, 3, 4, 5)

B = {4, 5, 6, 7,8}

Two integers will be randomly selected from the sets above, one integer from set A and one integer from set B. What is the probability probability that the sum of the two integers will equal 9?
Select one of the following answer choices