Let t be the present period. From time is perspective, in a model with quasi-hyperbolic discounting the discount rate between tand (+1 is ... Select one: a. Sometimes greater than and sometimes smaller than the discount rate between t+1 and t+2. b. Smaller than the discount rate between t+1 and +2. C. Greater than the discount rate between t+1 and +2. O d. Equal to the discount rate between C+1 and (+2