4) Use the figure below to answer the following questions. Price [dollars per unit) Quantity (units) Figure 1 a- Consider the demand curve in Figure 1. 'What is the consumer surplus when the price is $4 a unit? b- Consider the demand curve in Figure 1. 'What is the consumer surplus when the price is $11 a unit? c- Consider the demand curve in Figure 1. If the price rises from $4 to $11 a unit, What will happen to consumer surplus