Answer:
The correct option is;
B. The location is far from any continent, providing atmospheric air samples that are less likely to be affected by industry and transportation.
Explanation:
Mauna Loa observatory in Hawaii has the longest running record of air CO₂ content in the world which shows that the CO₂ level is increasing annually as represented in the Keeling curve. The observatory is far remote from industrial centers with a good access to air unadulterated by local CO₂.
The correct option therefore, is that the location is far from any continent, providing atmospheric air samples that are less likely to be affected by industry and transportation.
(10)10 = (00001010)2
Hope this helps!