What is the ductus arteriosus?

A) A connection between the pulmonary artery and the aorta

B) A connection between the pulmonary artery and the vena cava

C) A connection between the pulmonary vein and the aorta

D) A connection between the pulmonary vein and the vena cava

i it is d i hope it

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.

if you listed your answers right then i believe your answer is b.