Answer
{0,2,5,7,8,9}
Work Step by Step
If C is a set, the complement of C consists of all the numbers in the Universal set, not included in set C.
So, if the Universal set is {0,1,2,3,4,5,6,7,8,9}
and the set C is {1,3,4,6}
then the complement of C is {0,2,5,7,8,9}.