Acute Hemorrhage Causes a Reduction of Hemoglobin Concentration To $60 \%$

Acute hemorrhage causes a reduction of hemoglobin concentration to $60 \%$ of normal in an otherw ise healthy individual. If the alveolar ventilation and oxygen consumption rates remain the same as before the hemorthage, which of the following will occur after the hemorrhage?
A. Normal arterial $\mathrm { pO } _ { 2 }$ , normal venous $\mathrm { pO } _ { 2 }$
B. Low arterial $\mathrm { pO } _ { 2 }$ , normal venous $\mathrm { pO } _ { 2 }$
C. Low arterial $\mathrm { pO } _ { 2 }$ , Low venous $\mathrm { pO } _ { 2 }$
D. Normal arterial $\mathrm { pO } _ { 2 }$ , low venous $\mathrm { pO } _ { 2 }$
E. High arterial $\mathrm { pO } _ { 2 }$ , normal venous $\mathrm { pO } _ { 2 }$