Which function retrieves a content image by its Key?

• A. ContentImageByID
• B. DataExtensionRowCount
• C. ContentImageByKey
• D. ContentBlockByName

Answer: (C)

Accessing content images by a stable identifier is best done with the function designed for that asset type. Content images stored in Content Builder have a unique Key, which remains constant even if other attributes or IDs change. Using the function that retrieves an image by its Key allows you to reference the exact asset reliably, returning the image data or renderable URL for use in emails or pages.

Other options don’t fit because they target different things: retrieving by ID uses the internal numeric ID, which isn’t the Key; counting rows in a Data Extension has nothing to do with images; and fetching a content block by name returns a block of content rather than an image asset.