Deoxygenated blood from the heart enters into lungs via

The correct option is B

Pulmonary artery

Correct option is D :

Explanation of the correct option:

1. Pulmonary artery is the only artery that carries the deoxygenated blood.
2. It carries deoxygenated blood from the heart to the lungs for purification.

Explanation of the incorrect option:

Option A:

1. Pulmonary vein is the only vein which carries the oxygenated blood.
2. It carries oxygenated blood from the lungs to the left atria.

Option B :

1. The superior vena cava is a major vein in the upper body.
2. It carries blood from head, neck, upper chest, and arms to the heart.

Option :

1. Inferior vena cava is a major vein which collects deoxygenated blood from the lower parts of the body and sends it to the right atrium.

Final answer: Deoxygenated blood from the heart enters into lungs via Pulmonary artery.