Answer: (A) By allocating RAM to open applications
Explanation:
When we allocating the random access memory (RAM) to the various types of open applications then, the operating system perform various types of multitasking.
- When the operating system perform various types of multitasking then it allow the user the perform operations for the application programs.
- During the multitasking process, we can able to share the files to multiple resource at the similar time.
- During the execution of the program, the operating system uses the preemptive multitasking technique.
Therefore, Option (A) is correct.
