C2 C1 Consumption Disposable Income Figure 1 Refer to Figure 1 above. Suppose that the consumption function for C1 is the following: C1 = 20 + 0.5Yd, the consumption function that best fits C3 is C3 = 10 + 0.8Yd O C3=10 + 0.4Yd O C3=40 + 0.5Yd O C3 = 40 + 0.4Yd