11. If A = {1, 3, 7, 9, 10}, B = {2, 5, 7, 8, 9, 10} C = {0, 1, 3, 10} D = {2, 4, 6, 8, 10} E = {0} Find: C ∪ E

A. {0}
B. B. {0, 1}
C. {0, 1, 3, 10}
D. {0, 1, 3, 9, 10}

Need help advance thank you. :)