Answer:
A. Deactivating background scripts
A browser can be better secured by deactivating background scripts, which can reduce the risk of malicious code running without the user's knowledge. Installing Microsoft Word does not relate to browser security. Allowing all pop-ups can increase the risk of malware and phishing attacks. Using the same password for all accounts makes them vulnerable to hacking if one account is compromised. Strong, unique passwords and two-factor authentication can enhance browser security. Additionally, keeping the browser and plugins up-to-date and avoiding suspicious websites can minimize the risk of security breaches.