The Mediterranean basin countries: Spain, Portugal, Italy, Greece, Turkey, Tunisia and Morocco, produce 90% of the world's olive oil supply. What is the most likely reason these countries specialize in olive oil, instead of other countries like Belgium, Norway, or the United Kingdom?

A:The Mediterranean countries have the longest history with olive oil.
B:The Mediterranean basin is located between European and African markets.
C:The Mediterranean basin has a better climate for producing olive oil.
D:The people who live there love olive oil and know how to make it.