Check my wo Required information Supply Price of Yellow Paint Demand Quantity of Yellow Paint a. You observe that price has risen, and quantity has risen. This must be because (Click to select) |shifted (Click to select) . This could have been caused by (Click to select) b. You observe that price has risen, and quantity has fallen. This must be because (Click to select) |shifted (Click to select) v . This could have been caused by (Click to select)