【单选题】

Which of the following statement can best distinguish between fat and thin people
A．Fat people are sullen and gloomy whereas thin people are cheerful who know no fatigue.

B．Fat people are lazy and clumsy whereas thin people are diligent and crafty.
C．Fat people are practically reliable whereas thin people are seldom trustworthy.
D．Fat people are always feeling jaded whereas thin people never feel tired.