The cash flow series for two projects are Alt. A and Alt. B. YEAR 0 1 2 3 4 5 6 Alt. A - F1 X X X X X X + S1
Alt. B - F2 Y Y Y Y Y Y + S2

Assume that F2 > F1, and X, Y, S1, and S2 are positive; the incremental rate of return (i*) on the additional investment in Alt. B can be calculated with the following expression: choose one:

a. 0 = - F2 + Y (P/A, i*, 6) + S2 (P/F, i*, 6)
b. 0 = - (F2 - F1) + (Y - X) (P/A, i*, 5) + (S2 - S1) (P/F, i*, 6)
c. 0 = - (F2 - F1) (F/P, i*, 6) + (Y - X) (F/A, i*, 6) + (S2 - S1)
d. 0 = - (F2 - F1) + (Y - X) + (Y + S2) - (X + S1)
e. 0 = (F1 - F2) (F/P, i*, 6) + (X - Y) (F/A, i*, 6) + (S2 - S1)
f. 0 = - F1 + X (P/A, i*, 6) + S1 (P/F, i*, 6)
g. 0 = - F2 + Y (P/A, i*, 6) + S2 (P/F, i*, 6)
h. 0 = - F1 + X (P/A, i*, 5) + S1 (P/F, i*, 6)
i. 0 = - F2 + Y (P/A, i*, 5) + S2 (P/F, i*, 6)