Which of the following is an example of an immutable sequence type?

A tuple is an example of an immutable sequence type in Python because once a tuple is created, its elements cannot be modified, added, or removed. This property distinguishes tuples from other sequence types like lists, which are mutable and allow changes to their contents. Immutable types can be beneficial in various programming scenarios where data integrity is critical, as it ensures that the stored data remains unchanged throughout its lifecycle.

In contrast, lists are mutable and can be altered after their creation, making them unsuitable for situations where immutability is required. Similarly, dictionaries and sets are also mutable; they allow modifications such as adding or removing elements. Therefore, the defining characteristic of a tuple being immutable solidifies its identity as an immutable sequence type in Python.