Find the intersection and the union of the sets. A (3,4,6,8,9) and B={1,2,5,7) jennife OA. AnB={} (Use a comma to separate answers as needed.) B. The solution set is 0. Find the union of sets A and B. Select the correct choice below and, if necessary, fill in the answer box to comple your choice. A. AUB 2,4,6 (Use a comma to separate answers as needed.) The solution set is