Two four-sided dice with sides numbered from 1 through 4 are tossed. What is the sample space for the sum of the two dice? a. {4} b. {1, 2, 3, 4} c. {2, 3, 4, 5, 6, 7, 8} d. {1, 2, 3, 4, 5, 6, 7, 8}