(1 point) Consider the set {1, 2, 3, 4, 5}. (a) How many partitions of {1, 2, 3, 4, 5} have cardinality 1? (b) How many partitions of {1, 2, 3, 4, 5} have cardinality 2? (c) Which of the following are examples of partitions of {1, 2, 3, 4, 5 } with cardinality 2? ? 1. {{2, 4}, {1, 3,5} } ? 2. { {1, 5}, {2, 3, 4}} ? v 3. { {2, 3}, {1, 3, 4,5}} ? 4. { {1, 2}, {2, 3}, {3, d}, {4, 5}, {1, 5}} ? v 5. { {1, 4}, {2, 3,5} } 2 v 6. { {4, 5}, {1, 2,3} } ? 7. { {1}, {2, 3, 4, 5} } 8. {{2, 3}, {5, 1} }9. {0, {1, 2, 3, 4, 5}} 10. { {2), {1, 3, 4,5}} ? 11. { {1, 2}, {3, 4,5}} 12. { {2, 5), {1, 3,4}} 13. { {1, 2}, {1,5}}