-Under the Payback Period and Assuming These Machines Are Mutually

$\begin{array}{lrrr} &\text { Machine A } & \text { Machine B } & \text { Machine-C } \\&(\$ 20,000) & (\$ 30,000) & (\$ 40,000) \\& \text { Inflows } & \text { Inflows } & \text { Inflows } \\\text { year 1 } & \$ 10,000 & \$ 12,000 & \$-0- \\\text { year 2 } & 10,000 & 12,000 & 10,000 \\\text { year 3 } & 5,000 & 10,500 & 30,000 \\\text { year 4 } & 2,000 & 10,500 & 15,000 \\\text { year 5 } & -0- & -0- & 15,000\end{array}$
-Under the payback period and assuming these machines are mutually exclusive,which machine(s) would Horne Robinson Inc.choose?

A) Machine A
B) Machine B
C) Machine C
D) Machine A and B