B. Zaroff respects Rainsford and thinks that he will be a worthy opponent.
Zaroff knows Rainsford is intelligent and will be a worthy oppenent because he hasn't had one thus far in his game. He's heard of Rainsford and is aware of his celebrated status as a renowned big game hunter so he's confident in him.
Because within ea h and everyone of us, there lies a natural instinct to care for those who can not take care of themselves, the helpless and to nurture them to a state of wellbeing.
