In the division made, 7805 is the total amount of beet plants, 40 is the number of plants per row, 195 is the number of rows needed, and 5 is the number of plants left over. We can check this by multiplying 40 by 195, that is, 40x195 = 7800, this is 5 plants less than the total. Therefore, the correct choice is:
A. The farmer plants 195 rows of beets and has 5 beet plants left over