When his table-companion said "Bun appetit," he wanted to know （）

A．The old man misunderstood his table-companion.
B．It was easier for the old man than for many of the other passengers to go about the ship.
C．Being a mountain villager, the old man was serf-confident.
D．Nobody except the old man on board knew Greek.

A．to live the rest of his life with them
B．and stay with them for a few years
C．to help them run their restaurant
D．to see how rich they had become