Chapter 16, Problem 14RA

Which of these occur(s) during hypoxemia?

$\begin{array}{l}\begin{array}{l}\text{a}\text{. Increased ventilation}\hfill \\ \text{b}\text{. Increased production of 2,3-DPG}\hfill \\ \text{c}\text{. Increased production of erythropoietin}\hfill \end{array}\\ \text{d}\text{. All of these}\end{array}$