题目:
Each year for 4 years, a farmer increased the number of trees in a certain orchard by 14 of the number of trees in the orchard the preceding year. If all of the trees thrived and there were 6,250 trees in the orchard at the end of the 4-year period, how many trees were in the orchard at the beginning of the 4-year period?
选项:
A、1,250
B、1,563
C、2,250
D、2,560
E、2,752
答案:
D