Which of the following data types is included in the Collections category?

The selected answer falls under the Collections category because a dictionary is a data structure that allows for storing and managing a collection of key-value pairs. This is a fundamental type of collection in many programming languages. Collections are used to hold multiple items, and dictionaries specifically provide a means of organizing data in a way that enables efficient access and retrieval based on unique keys.

On the other hand, the other options listed—integer, boolean, and float—are all primitive data types rather than collections. Integers represent whole numbers, booleans hold true or false values, and floats store decimal numbers. None of these can store multiple values or pairs of values like a dictionary can, which is why they do not fit into the Collections category.