The correct configuration for this structure is: "S"
Work Step by Step
1. Switch the positions between the number that is on the dash and the number 4: 2. Now that it is on a dash, ignore it, and identify if the numbers are in clockwise or counterclockwise direction. ** Remember: Clockwise = "R", Counterclockwise = "S". 3. Since you have the configuration of the switched structure, you know that the original structure has the opposite configuration.