Option 1 -> "Oscillated between arrogance and shame" indicates active emotional conflict, not indifference or apathy.
Option 2 -> The passage suggests social barriers existed due to class differences and his own inability to mix, not because villagers victimized him.
Option 3 -> "Oscillated" means swinging between two states; experiencing both arrogance and shame simultaneously shows internal emotional conflict.
Option 4 -> This refers to indecision about choices, but the line describes emotional turmoil, not difficulty making decisions.
Hence, Option 3 -> The postmaster, uprooted from Calcutta and stationed in an unfamiliar village, experienced contradictory emotions—arrogance (perhaps feeling superior as a city-educated man) and shame (feeling inadequate or embarrassed about his isolation and inability to connect). The word "oscillated" perfectly captures this back-and-forth struggle with conflicting internal feelings. -> correct