Heather's Interest and Gains on Investments for the Current Year

Heather's interest and gains on investments for the current year are as follows:
$\begin{array}{llr} \text { Interest on Madison County school bonds } &\$600\\ \text { Interest on U.S. government bonds } &700\\ \text { Interest on a Federal income tax refund} &200\\ \text {Gain on the sale of Madison County school bonds } &500\\\end{array}$

$\text { Heather's gross income from the above is: }$
A) $\$ 2,000$ .
B) $\$ 1,800$ .
C) $\$ 1,400$ .
D) $\$ 1,300$ .
E) None of the above