Could you rephrase you question to create a clearer understanding .
Answer: B, (ghost)
Explanation: Unsure of how 'apparition' was used in Line #3 of Alexander Pushkin's poem but I'm fairly sure that B (ghost) is your best bet due to the fact that the dictionary definition for apparition is a ghost or ghost-like image of a person.
Scapegoat means having to be the person in a group or in a situation by having to be forced to take the blame when its not their fault.
example - u are friends with popular kids and they get in trouble and so in order to impress them to fit in ,u get in trouble instead.