What are the "two slight annoyances" that keep zaroff from "perfect enjoyment" on his final night?

a. it would be difficult to replace his best dog and ivan.
b. it would be difficult to replace ivan, and he had not caught his prey.
c. his shoulder was sore and the wine was poor.
d. he heard strange sounds in the bedroom and his dogs were barking ferociously.

The best and most correct answer among the choices provided by your question is the second choice or letter B.

The "two slight annoyances" that keep Zaroff from "perfect enjoyment" on his final night are that "It would be difficult to replace Ivan, and he had not caught his prey."

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