In an Individual, The $\mathrm { pO } _ { 2 }$

In an individual, the $\mathrm { pO } _ { 2 }$ and $\mathrm { pCO } _ { 2 }$ in different alveoli varies as follows:
$\begin{array} { l } &\mathrm{pO}_{2}&\mathrm{pCO}_{2}\\\hline \text {Alveolus A }&100&40\\ \text { Alveolus B }&40&45\\ \text { Alveolus C }&150&0\\\end{array}$
Which of the following statements is true?
A. Alveolus $\mathrm { B }$ is indicative of a dead space ventilation
B. Alveolus $\mathrm { C }$ is indicative of pulmonary shunt
C. Breathing $100 \% \mathrm { O } _ { 2 }$ would increase $\mathrm { PO } _ { 2 }$ in alveolus $\mathrm { C }$
D. Hyperventilation would increase $\mathrm { PO } _ { 2 }$ in alveolus $\mathrm { B }$