**A person put 1000 dollars in a bank at a compound interest 6 years ago. What percentage of the initial sum is the interest if after the first three years the accrued interest amounted to 19% of the initial sum?**

A) 38%

B) 42%

C) 19%

D) 40%

E) 50%

A) 38%

B) 42%

C) 19%

D) 40%

E) 50%

from diff math problem doc, oa coming when ppl respond with explantions, thanks!