Read the following context and choose the best option to answer the question.
Context: And stopping by ( since our office is only 20 minutes from my house ) . He and I have become true friends over the last 7 years and I know that I will be missed , which is a good feeling really .
Question: How many years have they been friends ?
Options: 
A. between 8 and 10 years
B. Between 2 and 6 years
C. Between 1 and 5 years
D. Between 6 and 8 years


D