You have been given the task of importing products from an external source. You decide to create a custom module to do this. The class handling the import creates a product for each record, sets the data on it and saves it to the database.
What do you inject into a constructor to represent each product you create?

The constructor function for \Magento\Catalog\Model\Category contains this excerpt:

With the automatic dependency injection that Magento provides, how is the StoreManagerInterface resolved?

What is the connection between product attribute sets and categories?

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?

You are writing a customization for the customer module. You need to make sure the configuration files from your module are loaded after the customer module's configuration.
Where should the dependency be declared?