Sorry the correct answer was B.
What is Argentina's most-planted red wine grape?
While Malbec is clearly on the rise as Argentina's signature red wine grape, according to Andre Domine's book Wine, Bonarda is more widely-planted. It's also traditionally been much less regarded, making its way into blended wines for the domestic market there. However, more focused efforts have been bottled in recent years which show that Bonarda is capable of producing very high quality Argentine wines in its own right.
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