Explanation: the two types of conflict are external and internal. To know and recognize the external conflict, it is necessary to move to the fight between the General Zaroff and his captive Rainsford. Internal conflict it's about the recognition of Rainsford and it's referred to the hunter and the hunted.
I am pretty sure it is option "A." Diligence by definition means to "careful and persistent work or effort" So yeah the answer is A. Hope this helped-- <span />
