Question

Which statement explains why the pulmonary artery splits into two branches?

because the heart has two halves
because the pulmonary artery goes to two lungs
because the right ventricle connects two chambers
because the pulmonary vein has two functions

Answer 1

Because the heart is on the left side of the chest, the left pulmonary artery is closer to the lung than the right pulmonary artery. After the left pulmonary artery enters the left lung, it divides into smaller branches. The right pulmonary artery courses across the upper chest to enter the right lung.

Answer 2

The answer is the third one
I think