Which one of the following can be inferred from the passage about the average annual temperature of the air over Northern Hemisphere landmasses before 1945? A. It was higher than it was between 1945 and the early 1970s. B. It was lower than it was during the early 1980s. C. It was the same as it was between 1945 and the early 1970s. D. It was the same as the annual average surface temperature of Northern Hemisphere landmasses and bodies of water between 1945 and the early 1970s. E. It was higher than the annual average surface temperature of Northern Hemisphere landmasses and bodies of water between 1945 and the early 1970s.