Which of the following statement is most correct concerning humans (and all other tetrapods)?

Which of the following statement is most correct concerning humans (and all other tetrapods)?

A. In all tetrapods the lungs are symmetrical.

B. In all tetrapods, the right lung is smaller than the left lung

C. In all tetrapods, the left lung is smaller than the right lung

D. There is no similarity between the lungs of different tetrapods groups