Which of the following statements is true about parity bits?

Parity bits are a simple form of error detection used in data transmission. They work by adding an extra bit to a string of binary code to help verify whether the data has been transmitted correctly.

When a parity bit is added, it can be set to either odd or even, depending on the number of 1s in the data being transmitted. If the data is manipulated, a mismatch in the expected parity (odd or even) can be detected at the receiving end, indicating the possibility of an error during transmission. While they serve a purpose in detecting errors, it is important to note that parity bits do not provide a comprehensive method for ensuring data integrity, nor do they guarantee that data is entirely accurate.

This makes the statement regarding the use of parity bits for error detection in data transmission accurate and relevant to their primary function in this context.