The algorithm Seq(n) is shown below, what is the value returned by Seq(1? Seq(n) { if (n = 1) return 1 else if (n = 2) return 2 else if (n = 3) return 3 else return (Seq(n-3) + Seq(n-2)) } Select one: O a. 2 O b. 3 O c. 1 O d. 0