I don't know whether this was one of your options, but South Asia can be very well characterized as a Sub-continent.
In fact, it's is commonly referred to as "the Indian Subcontinent" or even simply "Subcontinent". One of the reason for a distinction of this part of the land is that it lies on a different tectonic plate.
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it is 10 because you have to set up an equation to get the answer
They differ in some social and ritual customs, and in some aspects of their cuisine.
These 'surface' differences stem from their respective historical geographic origins. The history of the 'Sephardim' springs from western Europe and North Africa, including Spain, Portugal, Turkey, Morocco, Egypt, and Arabia. The history of the 'Ashkenazim' is rooted in Eastern Europe, including Germany, Poland, the Baltics, Russia, and the 'Stans' ... Tajik, Kazakh, Uzbek, etc.
One fascinating feature of this split, isolated evolution of Judaism ... and there are many ... is the fact that even though the two streams evolved, with almost zero contact, for as much as 1,000 years, a Sephardic Torah scroll and an Ashkenazic Torah scroll are totally identical, down to the last character in every one of their 10,290 lines of text written in 245 columns.
I think you know the answer, but it is 4.
