If P(A)=0.7P(A) = 0.7P(A)=0.7, P(B)=0.5P(B) = 0.5P(B)=0.5, and P(A∩B)=0.3P(A \cap B) = 0.3P(A∩B)=0.3, what is P(Ac∪Bc)P(A^c \cup B^c)P(Ac∪Bc)?
0.3
0.5
0.7
0.8