The range of integers that can be represented by an n-bit 2’s compiement number system is

A

$$ -2^{n - 1} to (2^{n - 1} - 1) $$

B

$$ -(2^{n - 1} - 1) to (2^{n - 1} - 1) $$

C

$$ -2^{n - 1} to 2^{n - 1} $$

D

$$ -(2^{n - 1} + 1) to (2^{n - 1} - 1) $$