Final answer:
The hardware components on a computer can become lost or damaged and prevent it from working correctly.
Step-by-step explanation:
The answer to your question is a) Hardware components. Hardware components, such as the motherboard, hard drive, or RAM, can become lost or damaged and prevent a computer from working correctly. For example, if the hard drive fails, the computer may not be able to boot up. Similarly, if the RAM module is damaged, the computer may experience memory errors.