Explanation:

In Python, there are several built-in data types that are commonly used to store and manipulate data. These include integers, floating-point numbers, strings, lists, tuples, dictionaries, sets, and booleans. However, the built-in data type "array" is not included in this list.

Arrays:
An array is a collection of elements of the same data type that are stored in contiguous memory locations. In Python, arrays are not built-in data types. Instead, Python provides the "array" module that allows you to create arrays. The "array" module provides a high-performance array-like data structure that is more efficient for handling large amounts of data compared to lists.

Dictionaries:
A dictionary is a built-in data type in Python that is used to store key-value pairs. Each key in a dictionary is unique, and it maps to a specific value. Dictionaries are implemented using hash tables, which allows for fast lookup and retrieval of values based on their keys.

Sets:
A set is also a built-in data type in Python that is used to store a collection of unique elements. Sets are unordered and do not allow duplicate values. They are implemented using hash tables, which provide efficient membership testing and set operations such as union, intersection, and difference.

Boolean:
A boolean is a built-in data type in Python that represents the truth values True and False. Booleans are often used in conditional statements and logical operations.

Therefore, the correct answer is option C) Array. Arrays are not a built-in data type in Python, but rather provided through the "array" module.