When the cashier told him to join the queue, he considered it _____ his dignity?
Answer Details
The best option that completes the gap is "an affront on". In this context, "an affront on" means that the act of being told to join the queue was seen as an insult or an offense to the person's dignity. The sentence implies that the person felt that being told to join the queue was beneath their status or level, and that it was an insult to their dignity.