The number of sunny days in the southern region each year can vary greatly and depends on specific geographic location and seasonal variations. Without further information, it is not possible to determine which of the given options (a, b, c, or d) is correct.
The number of days that the sun shines in the southern region each year can vary widely depending on the specific location.
In general, this figure is influenced by the tilt of the Earth's axis and the resulting solar exposure during various seasons.
For instance, during the summer solstice, areas in the Northern Hemisphere will have longer daylight hours due to the sun being at a higher angle in the sky, while during the winter solstice, the Southern Hemisphere will experience longer daylight hours.
Therefore, it's challenging to provide a precise number of sunny days without a specific geographic coordinate.
However, in the context of exam-style multiple-choice questions like the one posed, an estimate would typically be provided based on average climatic data.
For this question, we do not have enough information to select an answer from the given options.
Knowing the specific region within the Southern Hemisphere would be essential.
For example, on or about June 21, which is called the summer solstice in the Northern Hemisphere, the Tropic of Cancer (23° N latitude) will experience the sun at the zenith at noon.
Conversely, regions like Chile will have fewer daylight hours during this period.
Understanding these seasonal variations is crucial to determine the number of sunny days in a year for a particular location.