System Analysis and Design
The advantage of Purchase Option is (are)

the flexibility of modifying the system at will
Insurances, maintenance, and other expenses are included in the rental charge
No financing is requird. The risk of system obsolescence is shifted to the lessor
All of these
None of these

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System Analysis and Design
The term Parallel Run refers to

the processing of two different jobs initiated from two terminals.
None of these
All of these
the concurrent operation of an existing system and a new system
the same job run on two different computer to test their speeds

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