How can this be accomplished?
A developer needs to provide a Visualforce page that lets users enter Product-specific details during a Sales cycle.
A. Download a Managed Package from the AppExhange that provides a custom Visualforce page to modify. B. Copy the standard page and then make a new Visualforce page for Product data entry. C. Download an Unmanaged Package from the AppExchange that provides a custom Visualforce page to modify. D. Create a new Visualforce page and an Apex controller to provide Product data entry.