Using a grounded wrist strap is a fundamental safety measure to prevent ESD by safely discharging any static electricity that might have built up on the person. This is critical when handling sensitive electronic components such as memory modules.
Option A is incorrect because working on a carpeted surface actually increases the risk of generating static electricity.
Option C is incorrect because keeping the laptop plugged in poses a risk of electrical shock and does not address ESD effectively.
Option D is incorrect because handling components by the connectors can damage the connectors and does not prevent ESD.