Two (one red and one blue) six-sided dice are rolled and the sum of the two up faces is recorded. What is the sample space for the random experiment?

S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}

S = {0, 1, 2}

S = {1, 2, 3, 4, 5, 6}

S = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}