Which of These are Found in Pigs but NOT Humans

Question

Which of these are found in pigs but NOT humans?
A) trachea
B) left primary bronchus
C) apical bronchus
D) right primary bronchus

Accepted Answer

Pigs have an additional bronchus called the apical bronchus, which branches off of the trachea before the left and right primary bronchi. Humans only have the trachea, left primary bronchus, and right primary bronchus.