I think its B but possibly C
The answer is c. reverse its polarity.
Doldrum is the region of very calm and little or no wind on either side of the equator. Doldrums which is also called convergence zone is an equatorial region of the Atlantic ocean which has sudden storms and light unppredictable winds. In addition doldrum is abelt around the earth near the equator where the sailing ships sometimes get stuck on windless water.
The entire United States and the rest of the world serve as the hinterland for all of the following cities except Tucson.
The sea is drying up because of the heat of global warming
