Questions 1 to 5 are based on the following conversation.

2（）

单项选择题The sentence But his critics may be onto something. (para. 2) implies that （）

A．the critics feel it am easy task to criticize Britain’s Prince Charles
B．the critics belong to British green groups
C．the critics are right in pointing out the critical issue in environmental pollution
D．the critics know that long-haul flights emit more carbon dioxide than car driving

单项选择题It can be concluded from the passage that the author’s major concern is （）

A．the continuing social progress and prosperity
B．the development of western philosophy
C．corporate, civic and personal responsibilities
D．general well-being of the society