Ventilation Is Increased the Most by
A)increases in Arterial $\mathrm { P } _ { \mathrm { CO } _ { 2 } }$

Multiple Choice

Ventilation is increased the most by

A) increases in arterial $\mathrm { P } _ { \mathrm { CO } _ { 2 } }$
B) decreases in arterial $\mathrm { P } _ { \mathrm { CO } _ { 2 } }$
C) increases in arterial $\mathrm { P } _ { \mathrm { O } _ { 2 } }$
D) decreases in arterial $\mathrm { P } _ { \mathrm { O } _ { 2 } }$
E) none of the above