Question 3 1 pts Why can the expectations hypothesis not generally be true? You need to select all correct statements: The yield curve usually slopes upwards The yield curve usually slopes downwards The yield curve sometimes slopes upwards, and hometimes slopes downwards, and is flat on average According to the expectations hypothesis, investors usually expect yields to increase in the future According to the expectations hypothesis investors usually expect yields to decrease in the future Since yields revert to the mean, it doesn't make sense to believe that they will always go up, or always go down