The best answer is B because Linux, macOS, and Windows handle application installation differently, so the technician should use the correct tool or deployment method for each operating system. The A+ Core 2 objectives specifically include diverse OS environments, macOS application installation file types such as .dmg, .pkg, and .app , and Linux tools such as apt-get and yum . The Mike Meyers/Mark Soper material explains that macOS software may be installed from the App Store, a .dmg disk image, or a .pkg installer, while Linux commonly uses package-management tools and distro software stores. The All-in-One Exam Guide also emphasizes that package managers install and update software while handling dependencies, which is especially important in Linux. A single Windows batch script would not properly apply to macOS and Linux. Sending users to the manufacturer’s website bypasses organizational control, and manual installation on every system is inefficient and error-prone.