C-02-Q066mediumsingle_mcqThe union of two sets AAA and BBB is—a{x:x∈A\{x : x \in A{x:x∈A and x∈B}x \in B\}x∈B}b{x:x∈A\{x : x \in A{x:x∈A or x∈B}x \in B\}x∈B}c{x:x∈A\{x : x \in A{x:x∈A and x∉B}x \notin B\}x∈/B}d{x:x∉A\{x : x \notin A{x:x∈/A and x∉B}x \notin B\}x∈/