Which one of the following statements is correct about the Veerashaiva Movement initiated during the mid-twelfth century in Karnataka?

Consider the following two statements about 'Bandagan' in the early Delhi Sultanate and choose the correct answer:

I. 'Bandagan' were special slaves purchased for military service and were trained with great care to hold the most important political officers in the kingdom.
II. 'Bandagan' were totally dependent upon their masters. So, the Sultans could not trust and rely upon them.

Fill in the blanks with the most appropriate choice:

To organize knowledge and ideas, conceptual resources include timelines, summaries, _____ and _____.