This is a case of pulmonary embolism. In a patient treated for a broken leg, immobilization of the affected limb is strongly advised; although immobilization imposes a risk to develop deep vein thrombosis or the development of clot most commonly in the popliteal veins. This clot or thrombus can be dislodged and can travel to the right ventricle then pumped into the pulmonary circulation; causing dyspnea, chest pain, and hemoptysis.
I will come back to this question tomorrow with the paragraph
The liver is responsible for regulating nutrient in the blood after absorption. Digested nutrient are absorbed into the bloodstream through capillaries in the villi that line the small intestine. Liver regulate nutrient in the blood example if body sugar levels increases the liver removed sugar from the blood.
B because that would be the equal choice