The Mansabdari system of the Mughals was a complex system. Its efficient functioning depended upon :
1. The practice of offering the title of 'Mansabdar' to military personnel only
2. Proper 'functioning of the dagh (branding) system
3. Proper functioning of the jagirdari system
Select the correct answer using the code given below :

Options

A. a.1 only
B. b.1 and 3 only
C. c.2 and 3 only
D. d.1, 2 and 3