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What approach maximizes reuse and maintainability?

A development team plans to enhance functionality of an existing application by changing several user interface rules. The team would like to pilot the enhancements to a small group of users before rolling the changes out to the entire user base.

What approach maximizes reuse and maintainability?
A . Place the updated rules into a new minor version of the ruleset and include the new ruleset version in a new application.
B . Place the updated rules into a new ruleset and include the new ruleset in a new application.
C . Place the updated rules into a new ruleset and include the new ruleset in a new version of the application.
D . Place the updated rules into a new minor version of the ruleset and include the new ruleset version in a new version of the application.

Answer: A

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