A. Increase in soil fertility
The answer is C. Subtropical winter rain
Subtropical is a zone characterized by two seasons only; summer and winter. It is known for hot and humid summers, and mild to chilly winters. The winter season is not a cold winter. They generally between latitudes 25° and 35° on the southeast side of all continents.
As compared to the subtropical climate type, the continental temperate contains warm and humid summers and cold and harsh winter.
The Country which is surrounded by water on all sides are known as "Islands" and there could be many examples like: "Britain, Ireland" etc..
Hope this helps!
South Carolina:)
Hope this helps!
Have a great day:)