The term hypercapnia refers to

the cessation of breathing.
labored breathing.
an increase in the P02
an increase in pH.
an increase in the Pc›2.

an increase in the Pc›2.

The term hypercapnia refers to an increase in the PcO2 (partial pressure of carbon dioxide) in the blood. It is not the cessation of breathing, labored breathing, an increase in the P02 (partial pressure of oxygen), or an increase in pH.