Answer:
d. $1,400.
Step-by-step explanation:
The computation of the gain on sale of debt investment is shown below:
Gain on sale of debt investment = Sale price - purchase price
where,
Sale price = $32,000 - $300 = $31,700
And, the purchase price is
= (60,000 + $600) × 30 days ÷ 360 days
= $30,300
Now the gain on sale of debt investment is
= $31,700 - $30,300
= $1,400