Let U={1,2,…,10}U = \{1, 2, \dots, 10\}U={1,2,…,10}. Let A={x∈U:x is prime}A = \{x \in U : x \text{ is prime}\}A={x∈U:x is prime} and B={x∈U:x is even}B = \{x \in U : x \text{ is even}\}B={x∈U:x is even}. What is n((A∪B)′)n((A \cup B)')n((A∪B)′)?
333
111
222
444