Which describes an operating system that is multitasking?
a) it waits for one program to finish and then starts the other program.
b) it continues to run all open programs.
c) it instructs the user to select and close one program.
my answer is b. is that true? explain ur answer.

The answer is b. because A is using one at a time. C is trying to use 1 at a time.

The answer is b but depending on your situation it could b c a computer is always multitasking in the background but when c happens usually too many things are writing to your disk at once and you need to switch a portion of your available disk space to that new program, a usually never happens unless you have a really bad computer and b is what usually happens when using a computer so again b is the answer but be careful when making that decision on a test if it gives you a scenario check the disk usage.

Hope this helped

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