Which of the following combinations is made up of all white grapes?
A. valdiguié, albariño, torrontés, parellada
B. albariño, malagousia, pinot grigio, canaiolo
C. grillo, macabeo, riesling, ribolla gialla
D. touriga nacional, trebbiano, sémillon, chenin blanc
All of the above are white varietals except valdiguié, canaiolo, and touriga nacional. A variety from southwestern France now virtually extinct there, valdiguié is grown in tiny amounts in California where it used to be known as Napa gamay. Grown all over Central Italy, canaiolo is a permitted grape for Chianti Classico. Portuguese touriga nacional is a key grape for Port production.