Which of the following statement(s) is(are) not correct ?i. The 2's complement of 0 is 0.ii. In 2's complement, the left most bit cannot be used to express a quantity.iii. For an n-bit word (2's complement) which includes the sign bit, there are 2^n-1 positive integers, 2^n+1 negative integers and one 0 for a total of 2^n unique states.iv. In 2's complement the significant information is contained in the 1's of positive numbers and 0's of the negative numbers.

• A. i and iv
• B. i and ii
• C. iii
• D. iv