What feature of an operating system allows it to support two or more CPUs?

What feature of an operating system allows it to support two or more CPUs?

• multiprocessing
• multitasking
• multiuser support
• multithreading
  

  Explanation: Multiprocessing allows an operating system to use two or more CPUs. Support for two or more users is provided by the multiuser feature. Multitasking allows multiple applications to run at the same time. Multithreading allows different parts of the same program to run at the same time.