In the module located at app/code/MyCompany/MyModulethere is a JS module in the file view/ frontend/web/register.js. The Magento base URL is https://magento.host/and the luma theme with the en_USlocale is used.
What is the public URL for this file?

A merchant is interested in setting different prices for the same products in different storescopes.
What do you reply to this inquiry?

You have added a new attribute origin of the type varchar to the product entity.
Which two calls will filter a product collection with origin set to "California"? (Choose two.)

You have added a new attribute origin of the type varchar to the product entity.
Which two calls will filter a product collection with origin set to "California"? (Choose two.)
$collection->addFieldToFilter('origin', "California");

You added a plugin declaration to MyCompany/MyModule/etc/di.xml:

What will be the effect of this declaration?