Which of the following should be done to reduce the risk of having sensitive passwords compromised while browsing the Internet?

Enabling software firewalls to block unknown ports helps prevent unauthorized network access to your computer, but it does not directly address the compromise of passwords already stored or entered via autofill in a browser.

Disabling autofill for forms and passwords prevents web browsers from storing and automatically populating login credentials. If your device is compromised or accessed by an unauthorized person, having autofill enabled could allow them to easily access your accounts, so disabling it significantly reduces this specific risk.

Enabling screensavers and time-outs helps protect your computer when physically unattended by locking the screen, but it doesn't directly prevent password compromise from browser autofill features while actively browsing.

Using ad-blocking software primarily improves browsing experience and can prevent some malvertising, but it doesn't directly prevent the compromise of passwords specifically through browser autofill functionality.