Calculate the value for a in the utility function if the MRSCS (Marginal Rate of Substitution of Chocolate for Sorbet) = 7.60 and 1 chocolate ice cream and 1 lemon sorbet are chosen. (Round your answer to 2 digits after the decimal point, no units)

a) 7.60
b) 0.13
c) 13.00
d) 0.76