What data type is used in Python to store multiple elements in an ordered collection that is mutable?

In Python, the data type used to store multiple elements in an ordered collection that is mutable is a list. Lists allow for the storage of a sequence of items, and these items can be modified after the list has been created. This means elements can be added, removed, or changed, which is a defining characteristic of mutability.

Lists maintain the order of elements, enabling you to access them using their index positions. The ability to append items, remove them, or change the values of existing items makes lists particularly versatile for various programming tasks.

While dictionaries store key-value pairs and are also mutable, they are not ordered in the way that lists are, especially in versions of Python prior to 3.7. Tuples, on the other hand, are ordered collections but they are immutable, meaning once created, their contents cannot be changed. Sets provide a collection of unique items but are unordered and do not allow for indexing, making them unsuitable for this particular requirement. Hence, the most suitable choice for an ordered and mutable collection of elements is indeed a list.