Suppose you already have a resource with a rule set up. For example, a daily rental from 9:00 AM to 6:00 PM.
First, create an additional rule to specify the periods when your price option should be unavailable. Learn how to create a rule
here.
Click the intersection of the new rule and the price option you want to make unavailable. In the settings form that opens, uncheck the Enabled box.
See the example below, where Price option B is disabled on weekends: