A, B and C discuss the significance of the principle that those who do not work cannot eat  A said, if you don't work, you can't eat, which means that those who get food don't have to work  B said, if you don't work, you can't eat, which means that those who get food must be workers
C said: if you don't work, you can't eat, which means that those who get food may be workers
The opinion of B is correct, The opinions of A and C are incorrect.