Which of the following best describes the highlighted layer on your screen

Option (A)

Explanation:

The image shows the interior of the earth, where the arrow points the core of the earth.

The core is the innermost region of the earth. It is comprised of extremely hot elements such as iron (Fe) and nickel (Ni) whose densities are very high in comparison to the other elements forming the crust and mantle. The density of the earth's core is approximately 13 g/cm³. The temperature and the pressure condition in this region are extremely very high that it is not possible for life to exist.

Thus, the correct answer is option (A).

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

it depends on how much it could carry.