Observe these two maps of specific humidity, the top from July 2012, the bottom from May 2012. Which condition could account for the observed changes?
A. July strengthening of the Bermuda-Azores high advecting moisture to the High Plains from the Gulf of Mexico.
B. May strengthening of the Hawaiian high advecting moisture in a zonal pattern to the High Plains from the Pacific.
C. May strengthening of the Bermuda-Azores high advecting moisture to the High Plains from the Gulf of Mexico.
D. July strengthening of the Hawaiian high advecting moisture in a zonal pattern to the High Plains from the Pacific.
Answer: A
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What will be an ideal response?