Which of the following statements about memory modules is true?

The statement that the contacts of memory modules should not be touched is true due to the sensitivity of electronic components to oils and dirt from human skin. Touching the contacts can introduce contaminants that may interfere with the electrical connection or even damage the module itself. Proper handling of memory modules requires one to hold them by the edges to avoid any contact with the pins or connectors.

In addition, it is also important to acknowledge that memory modules are susceptible to electrostatic discharge (ESD), making it critical to use appropriate precautions when handling them, such as using an anti-static wrist strap and working on an anti-static mat. This level of care is essential to ensure the longevity and reliability of the component.