A student runs a study on the productivity of employees depending on their office situation (whether or not they have plants and/or a window). Using the graph provided, which of the following is the correct interpretation of the simple effect of having a window, assuming it is significant. Group of answer choices Employees with no plants and a window in their office are the least productive out of all conditions of employee. Employees who have a window in their office are more productive overall than those who do not have a window. Employees who have a window in their office are more productive if they also have a plant, compared to if they do not have a plant. There is little difference in productivity for employees who do not have a window in their office, regardless of having a plant or not