The correct answer is A. Parity errors usually indicate bad memory.
Parity errors are caused by a mismatch between the data that is being stored in memory and the data that is being read from memory. This can be caused by a number of things, including a faulty memory module, a damaged memory bus, or a power surge.
If you are experiencing parity errors, it is important to run a memory test to determine which module is faulty. Once you have identified the faulty module, you can replace it or have it repaired.
LPT2 is a parallel port that is typically used to connect a printer to a computer. The modem is a device that allows a computer to communicate with another computer over a phone line.
None of these options are typically associated with parity errors.