What variable would you use to iterate over products in a collection?

To iterate over products in a collection, using the variable collection.products is appropriate because it directly references the products that belong to a specific collection in Shopify. This variable encapsulates all the product data relevant to the collection, making it ideal for loop iteration.

When working within Shopify's Liquid templating language, each collection contains a set of its associated products, which can be accessed through the products attribute. This allows for efficient manipulation and display of each product's information, such as titles, prices, images, and other essential details within a collection context.

While other terms may seem relevant, they do not adhere to the correct variable structure or context defined by Shopify's Liquid documentation. Therefore, collection.products is the definitive choice for iterating over products within a designated collection.