The minimum number of page frames that must be allocated

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The minimum number of page frames that must be allocated to a running process in a virtual memory environment is determined by

1. the instruction set architecture
2. page size
3. physical memory size
4. number of processes in memory

Correct Option: A

Page frames are allocated in main memory, for virtual memory pages. This no. of page frames depends upon the instruction set architecture. Hence (a) is correct option.