An Increase in Pulmonary Artery Systolic Pressure Is Seen in Patients

An increase in pulmonary artery systolic pressure is seen in patients with which of the following conditions?
1) Pulmonary embolus
2) Mitral valve stenosis
3) Right ventricular failure
4) Hypoxia and hypoxemia

A) 1 and 3
B) 2 and 3
C) 1, 2, and 4
D) 2, 3, and 4