[: Magento's developer documentation on dependency injection and virtual types highlights this pattern for customizing class behavior in a contained and non-intrusive manner., Injecting the Virtual Type into the Admin Controller:The custom virtual type is then injected into the Vendor\CustomGallery\Controller\Adminhtml\Image\Upload controller. This ensures that only this controller uses the modified version with the custom paths, leaving other instances of ImageUploader to function with their default settings., Explanation: By explicitly injecting the virtual type into the controller, you localize the configuration changes to only the desired functionality. This approach is efficient and maintains module independence, a key principle in Magento development., Options B and C are incorrect for the following reasons:, Option Bdirectly modifies Magento\Catalog\Model\ImageUploader with the new paths. This change will affect all usages of the ImageUploader class across the site, which contradicts the requirement to avoid impacting other modules., Option Cinvolves creating a virtual type and then setting it as a preference. However, using a preference would replace all instances of ImageUploader across the entire Magento application, leading to the same issue as Option B., ]