Answer :

Between 1985 and 1995, the number of African American inmates sentenced for drug offenses increased by 700%.

Let's look at the various percentage options given:

- Option A: 300%
- Option B: 500%
- Option C: 100%
- Option D: 700%

Considering the data and the significant increase noted, the correct answer to the question is 700%.

Therefore, the percentage increase in the number of African American inmates sentenced for drug offenses between 1985 and 1995 is:

D. 700%