Which definition accurately describes a container in programming?

The definition that states a container is an identifier that can reference multiple values accurately captures the concept of a container in programming. In programming languages, a container is often used to hold a collection of values or objects. This could be in the form of data structures such as arrays, lists, sets, or dictionaries, depending on the language. The key aspect of a container is its ability to manage and organize multiple data items under a single identifier, allowing for efficient storage, retrieval, and manipulation of those values.

In contrast, fixed memory allocation refers to a static way of managing memory which doesn't necessarily imply the capacity to contain multiple items. A code block containing functions describes a scope of code but doesn’t represent the idea of a container as a holder of values. Data integrity checks relate to ensuring accuracy and consistency in data, which is unrelated to the concept of containers that primarily focus on data storage and organization.