I believe it's the systolic measurement and the diastolic measurment
I believe the answer is A. Achieving all of the above results.
Reason being because you need a certain amount of oxygen to support your muscles in every activity or your body will shut down.
Fatigue
Nausea
Insomnia
Dehydration
Those are the answers
-----------------------------------
In 1798 the first smallpox vaccine was developed.Over the 18th and 19th centuries,systematic implementation of mass smallpox immunization culminated in its global eradication in 1979.