Answer:
System preferences.
Explanation:
MacOS is the primary operating system designed and developed for Apple computers (MacBook).
In macOS, system preferences is a launch point that provides access to almost all the settings needed to administer a macOS system. The system preferences allow users to change various settings on their Mac computers such as changing the desktop layout, desktop picture (wallpaper), size and location of the dock, font size, appearance, energy saver etc.
ANSWER: BOT
EXPLANATION: When a PC is experiencing the listed effects, it thus depicts that the PC is under attack by a bot, which is a type of script or software application that establishes automated tasks via command.
However, a bad bots often initiate malicious tasks that gives room for attackers to take control over an affected PC remotely, most especially for fraudulent activities.
When several affected computers are connected, they form a botnet connection.