In year 2001, a district with 4,000 manufacturing jobs has a 10% share of total manufacturing jobs within the state. In year 2011, the state recorded 15% drop in manufacturing jobs whereas, share of the district in total manufacturing jobs within the state increased to 15%. Additional manufacturing jobs created in the district between year 2001 and 2011 is ______________

• A. 2100 to 3100
• B. 1100 to 1100
• C. 600 to 1000
• D. 400 to 800