Which of the following is NOT a declarative option for distributing a screen flow?

The concept of distributing a screen flow in Salesforce revolves around various methods that allow users to access and engage with the flow. Among the options provided, custom objects do not serve as a declarative option for this purpose, making them the correct answer to the question.

Lightning pages, for example, can host screen flows by embedding them directly into a Lightning app or page, allowing for a seamless user experience. Snap-in deployments refer to a feature that enables flows to be integrated into Salesforce experiences outside the core platform, such as within a mobile app or website. Flow actions are a declarative way to make flows available in various contexts, such as record pages or actions, enhancing accessibility.

Since custom objects are fundamentally designed to store and manage data rather than directly distribute flows, they do not qualify as a method for making screen flows accessible to users, thereby identifying them as the option that does not fit with the others in the context of flow distribution methods.