In Which of the Following Situations Will Arterial $\mathrm{PO}_{2}$ Be Closest To

Multiple Choice

In which of the following situations will arterial $\mathrm{PO}_{2}$ be closest to $100 \mathrm{~mm} \mathrm{Hg}$ ?

A) A person who is having a severe asthmatic attack
B) A person who lives at high altitude
C) A person who has a right-to-left cardiac shunt
D) A person who has a left-to-right cardiac shunt
E) A person who has pulmonary fibrosis