What is (∪)ᶜ where ={5,11,3,8,9}, ={99,5,11,2,4} and Universal Set ={5,16,4,12,2,11,99,3,1,9,8} ?

Select the correct answer below:
a. (∪)ᶜ={3,8,9}
b. (∪)ᶜ={16,11,1}
c. (∪)ᶜ={5,11}
d. (∪)ᶜ={16,12,1}