Given a NewsletterSubscription custom object that has a key attribute named email of type String, what is the correct syntax to create the NewsletterSubscription custom object and persist it to the database?

A Digital Developer wants to selectively retrieve products and process them from an iPhone.
Which action should the Developer take, given that JavaScript controllers CANNOT be used?

A client has a requirement to render different content on the homepage based on if the customer is logged in or guest user.
What should a developer implement to achieve this requirement?

A Digital Developer has been given a specification to integrate with a REST API for retrieving weather conditions. The service expects parameters to be form encoded.
Which service type should the Developer register?

An Architect is documenting the technical design for a single B2C Commerce storefront. The Client has a business requirement to provide pricing that is customized to specific groups:
* 50 different pricing groups of customers
* 30 different pricing groups of employees
* 10 different pricing groups of vendors
Which items should the Architect include in the design in order to set applicable price books based on these requirements'' Choose 2 answers