The following bar graph shows the sales (in thousands) of motor bikes by the factories, F1, F2, F3, and F4 in 2017, 2018 and 2019.Which of the factories witnessed the highest increase in the percentage of sales from 2018 to 2019 ?

The following bar graph shows the sales (in thousands) of motor bikes

1.	The following bar graph shows the sales (in thousands) of motor bikes by the factories, F1, F2, F3, and F4 in 2017, 2018 and 2019.Which of the factories witnessed the highest increase in the percentage of sales from 2018 to 2019 ?
A.	F3
B.	F2
C.	F4
D.	F1
Answer» E.