Consider the universal set U={1,2,3,4}U = \{1, 2, 3, 4\}U={1,2,3,4}. How many subsets A⊆UA \subseteq UA⊆U satisfy the condition A∩{1,2}={1}A \cap \{1, 2\} = \{1\}A∩{1,2}={1}?
2
4
8
16