So lets say you found farming tools then a secondary source would be like telling how they farmed so you can see how they used those tools. in an example say i said that the native Americans rode on horses were did they ride those horses? i hope this helps
Answer:
c.. They were a highly trained elite group of military fighters
Explanation:
The support of the military power of the Janissaries was vital to political power of the Muslim empire of the Ottoman Turks.