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

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

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System Analysis and Design
Advantages of Relational Database Management systems are

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

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