Two part question, I need to know where to draw the lines and then the multiple choice question

Over what range of prices does a shortage arise? Price (dollars per ticket) 500 What happens to the price when there is a shortage? S 400- The graph shows the demand curve and the supply curve in the market for football tickets. 300- Draw a horizontal line at a price at which there is a shortage of football tickets. Label it Shortage. When a shortage arises, the price to its equilibrium, which 200- D O A. falls; increases demand and decreases supply O B. rises; decreases demand and increases supply 100- O C. falls; increases the quantity demanded and decreases the quantity supplied O D. rises; decreases the quantity demanded and increases the quantity supplied 0- Quantity (millions of football tickets per year) > >> Draw only the objects specified in the