Answer
AUC = {c,d,e,f,k,p,r}
Work Step by Step
AUC.
Set AUC represents to all the elements of set A and set C.
As per given Venn diagram,
The regions I, II, IV, V, VI, VII represents the set AUC.
The elements of the regions I, II, IV, V, VI, VII are c,d,e,f,k,p,r.
AUC = {c,d,e,f,k,p,r}