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

None of these
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
the flexibility of modifying the system at will
All of these

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System Analysis and Design
Advantages of Relational Database Management systems are

Flexibility, of relating different logical files
All of these
Data independence since it allows the database to grow by adding new attributes and relations.
Security controls can be more easily implemented.
None of these

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