Q. 26 Let ΣΣ be a finite non-empty alphabet and let 2Σ∗2Σ∗ be the power set of Σ∗Σ∗. Which one of the following is TRUE?
(A)Both 2Σ∗2Σ∗ and Σ∗Σ∗ are countable
(B)2Σ∗2Σ∗ is countable and Σ∗Σ∗ is uncountable
(C)2Σ∗2Σ∗ is uncountable and Σ∗Σ∗ is countable
(D)Both 2Σ∗2Σ∗ and Σ∗Σ∗ are uncountable
Answer: (C)
Explanation: