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單項選擇題

You are developing a Windows Presentation Foundation (WPF) application
The application is for commercial use and requires a valid license key to be entered. You create a project type of Class Library code to validate license keys
You need to ensure that the user enters a valid license key during installation of the software.
Which deployment should reference the class library?()

A. Click Once
B. Setup Project
C. XBAP
D. XCopy

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