Where do you define the class that provides options for the select field that enables or disables the provider in the file etc/adminhtml/system.xml?

A Magento industry partner shipping provider has tasked you to build their integration

module called MyCompany_ShippingProvider.

Where do you define the class that provides options for the select field that enables or disables the provider in the file etc/adminhtml/system.xml?
A . <option_model>MagentoConfigModelConfigOptionYesno</option_model>
B . <source_model>MagentoConfigModelConfigSourceYesno</source_model>
C . <frontend_model>MagentoConfigModelConfigFrontendYesno</frontend_model>
D . <backend_model>MagentoConfigModelConfigBackendYesno</backend_model>

View Answer

Answer: B