Given A={1,2}A = \{1, 2\}A={1,2}, what is P(A)∩{1,2}P(A) \cap \{1, 2\}P(A)∩{1,2}?
{1,2}\{1, 2\}{1,2}
∅\emptyset∅
{1,2,{1,2}}\{1, 2, \{1, 2\}\}{1,2,{1,2}}
{{1},{2}}\{\{1\}, \{2\}\}{{1},{2}}