Explanation:

- Category, sort, group: These words refer to a set or class of items having shared characteristics or attributes.

- Option 1: Kind: This means a category or type of something, aligning perfectly with the concept of category, sort, or group.

- Option 2: Benevolent: This describes a kindly disposition or desire to do good, unrelated to categorization.

- Option 3: Sports: This refers to athletic activities or games, not a general category type like those listed.

- Option 4: Event: This denotes an occurrence or happening, which is not the same as a category or group.