What is the customers demand for international cuisine

UK cuisine is largely international, with curry (for instance) being the most popular foodstuff in the UK, originating from Asia. As Hungarian, Italian, Greek, Indian, French, Chinese, Vietnamese, Mongolian, and any number of other exotic food outlets are thriving in London, for instance, it would suggest that customer demand for these foodstuffs is enough to sustain business.

Ithink the answer is c.  hope this is right and