Q. Two computers that communicate with each other use a simple parity check to detect errors for ASCII transmissions. Which of the following events will always lead to an undetected error?
A. Two bits or any even number of bits inverted in a byte during transmission
B. One bit or any odd number of bits inverted in a byte during transmission
C. Two bits or any even number of bits inverted in a block during transmission
D. One bit or any odd number of bits inverted in a block of data during transmission