The following graph shows the data of the collection of interest on loans (in crore €) by six branches B1, B2, B3, B4, BS and B6 of a bank during the years mentioned.

Based on the information, from the year 2016 to 2017, the highest rate of collection is for the branch:

From the graph,

Percentage increase in collection of interest from 2016 to 2017 for the branch B1 = $$\frac{9}{43}\times100=20.93\%$$

Percentage increase in collection of interest from 2016 to 2017 for the branch B3 = $$\frac{7}{28}\times100=25\%$$

Percentage increase in collection of interest from 2016 to 2017 for the branch B4 = $$\frac{6}{34}\times100=17.64\%$$

Percentage increase in collection of interest from 2016 to 2017 for the branch B6 = $$\frac{13}{25}\times100=52\%$$

$$\therefore\ $$From the year 2016 to 2017, the highest rate of collection is for the branch B6

Hence, the correct answer is Option B