The correct answer is A. The prevailing climatic type in the southeastern part of the USA, Western Europe, Southern Brazil and northen Argentina is the mid-latitude or humid temperate.
The temperate climate characterizes regions whose temperature varies regularly throughout the year, with the average above 10 ° C in the warmer months and between -3 ° and 18 ° C in the cold months. They have four well-defined seasons: a relatively warm summer, a fall with gradually lower temperatures as the days go by, a cold winter, and a spring, with temperatures gradually increasing with the passing of days. Humidity depends on the location and geographic conditions of a given region.