D all of the above, they all contribute to seasons
Rome was the political center of all Western civilisations because it was the capital of the Roman Empire, and Italy's capital today. After its decline, Italy endured numerous invasions by foreign peoples, including many Germanic tribes.
Hey there!
I believe the answer you are looking for here is the rising air near the equator. (I don't exactly know if this is the correct answer but I do know that prevailing winds can vary due to the uneven heating of the Earth) so you can make your choice based on my knowledge but you should also perhaps wait for another person's opinion.
I hope this helps and that you have a great day! :)
<em>Ravenna</em>