The following table shows the percentage distribution of employees in five different departments 1-5 in a company during the years 2020 and 2021. The total number of employees in 2020 and 2021 is 1200 and 1600, respectively.

In which department is the variation in strength of employees maximum in 2021 in comparison to that in 2020?

A

Department 1

B

Department 4

C

Department 5

D

Department 2