Consider the Following Hypothetical Difference-In-Differences Results Concerning the Average of Hours

Consider the following hypothetical difference-in-differences results concerning the average of hours worked in "big-box stores" between North and South Dakota before and after North Dakota increased its minimum wage.The minimum wage increase is associated with average hours of working decreasing by how much per week in North Dakota relative to South Dakota?

A) 2.1 hours
B) 11.7 hours
C) 13.8 hours
D) 15.9 hours
E) 20.2 hours