Answer:
Option (b) is correct.
Explanation:
Given that,
Interest on Madison County school bonds = $600
Interest on U.S. government bonds = $700
Interest on a Federal income tax refund = $200
Gain on the sale of Madison County school bonds = $500
Gross income:
= Interest on U.S. government bonds + Interest on a Federal income tax refund + Gain on the sale of Madison County school bonds
= $700 + $200 + $500
= $1,400
Note: Interest on Madison County school bonds is exempt from the calculations of gross income.