The Pie chart given below presents the expenses incurred by different departments of a company. Each expense is shown as a percentage of the total expenditure of the company.
The central angles shown in Pie chart are not as per any chosen scale

What is the difference between the central angles subtended by the segments D2 and D3?

A

$$18.6^\circ$$

B

$$15.3^\circ$$

C

$$24.2^\circ$$

D

$$21.6^\circ$$