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

All of these
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

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System Analysis and Design
An open rectangle

represents a process that transforms incoming data flow(s) into outgoing data flows
None of these
identifies data flow
is a data store-data at rest, or a temporary repository of data
defines a source or destination of system data

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