Final answer:
The net income needed each month to achieve an annual return of 12% on a building worth $115,000 is $13,800. Therefore, the correct option is A.
Step-by-step explanation:
To determine the net income needed each month for an annual return of 12% on a building worth $115,000, we can use the formula:
Net Income = Property Value x Annual Return
Net Income = $115,000 x 0.12 = $13,800
Therefore, the net income needed each month is $13,800.