Answer
A= {1,2,3,4,5,6,7,8}
Work Step by Step
Set A, represents the all the elements of the set A.
From the given Venn diagram we can conclude that the regions I, II, IV, V represent the set A. The element of these regions are 1,2,3,4,5,6,7,8
So, A= {1,2,3,4,5,6,7,8}