Not able to find the setting called "Reviews"

Hi, at this module "https://trailhead.salesforce.com/content/learn/modules/data_security/data_security_objects?trailmix_creator_id=srebello7&trailmix_slug=salesforce-administrator-explorer

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we have steps : 

Create a Permission Set

Create a permission set that controls access to the Review object for your Recruiter app.

1. From Setup, in the Quick Find box, search for and select Permission Sets.
2. Click New.
3. Enter your permission set’s label and description. Name this one Access and Manage Reviews.
4. Optionally, you can select whether only users with certain licenses are assigned this permission set. Select –None–.
5. Click Save.
6. To add object permissions, in the Find Settings box, search for and select Reviews.
7. Click Edit.
8. Enable Read, Create, and Edit permissions.
9. Click Save.

And there at the step 6: To add object permissions, in the Find Settings box, search for and select Reviews

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i can not find the setting "Reviews", please help me in completing this step at the earliest.