In which department of the factory number of employees remained

Direction: Study the following table carefully and answer the questions given below.

In which department of the factory number of employees remained nearly same during the years from 2003 to 2008?

1. Production
2. Sale
3. Research and Development
4. Administration and Accounts
5. Procurement

According to the table in the research and development department number of employees remained nearly same during the year from 2003 to 2008.