Answer:
D. $3,500
Explanation:
we must focus on the result of the year and the dividends paid, since these decrease the  Retained Earnings
Cash flow has no impact and the insurance of stock  is within the result of the year
2019, income was 1200 less dividends allocated
200
Retained Earnings= 1000
2020 result of 500 without dividend distribution
Retained Earnings= 500
2021 result of 2300 and distribution of dividends by 300
Retained Earnings= 2000
Total Retained Earnings= 3500