Exhibit 22-1 Walters Company Provided the Following Information Relating to Patents

Exhibit 22-1 Walters Company provided the following information relating to patents for 2010:
$\begin{array}{ll}\text { Balance, } 1 / 1 / 2010 & \$ 4,800 \\\text { Purchase of } 10 \text {-year life patent for cash } & 2,000 \\\text { Sale of patent at book value } & (1,400) \\\text {Amortization of patents}&(290) \\\text {Balance, 12/31/2010}&\$5,110\end{array}$

- Refer to Exhibit 22-1.The Cash Flows from Operating Activities section prepared using the indirect method would include which of the following deductions or add-back amounts related to patents?

A) $(310)
B) $(290)
C) $ 290
D) $ 600