If A and B are two equal sets, then A - B is equal to :

1. A

2. B

3. {0}

4. { }

If n(A) = n(B) then :

1. A = B

2. A ≠ B

3. A - B = {0}

4. none of these

Let M = {factors of 12} and N = {factors of 24} then {24} is equal to :

1. M ∪ N

2. M ∩ N

3. M - N

4. N - M

Statement 1: The number of subsets of {{1, {0}}, 2} is 8.

Statement 2: A set containing 'n' elements has 2^{n - 1} proper subsets.

Which of the following options is correct?

1. Both the statements are true.

2. Both the statements are false.

3. Statement 1 is true, and statement 2 is false.

4. Statement 1 is false, and statement 2 is true.