In which of the following addition problems (using two's complement notation) does an overflow error occur?

Question

Quizplus · Accepted Answer

When adding two numbers in two's complement notation, an overflow error occurs when the result is outside the range that can be represented by the available number of bits. In option B, the most significant bit of the result is 1, indicating a negative number, but the carry out of the sign bit is 0, indicating a positive number. This inconsistent result indicates an overflow error.

In Which of the Following Addition Problems (Using Two's Complement