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
All of these
None of these
No financing is requird. The risk of system obsolescence is shifted to the lessor

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System Analysis and Design
System prototyping helps the designer in

all of the listed here
making the programmers understand how the system will function.
communicating to the user, quickly, how the system, when developed, will look like and get a feedback.
giving a demo of the software, to the system manager to whom he reports

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