answer the question, need answer only

Question 55 Use the table below to answer the following questions. Not yet Table 3.4.1 answered Marked out of Price Quantity Quantity .000 (dollars per Demanded Supplied Flag unit) (units) (units) uestion 1 1,100 50 2 800 200 3 600 420 4 500 500 420 580 00 0) UT 350 640 320 680 300 700 Refer to Table 3.4.1. A shortage occurs if Select one: O a. the price is $7 a unit. O b. the price is $4 a unit. O c. the price is $5 a unit. O d. the price is below $4 a unit. O e. the price is $6 a unit