Final answer:
The Tarrantez grape variety is used on the island of Madeira to produce fortified wines. Madeira wine is known for its unique taste, which is attributed to the island's fortification and aging processes. The correct option is B.
Step-by-step explanation:
The grape variety "Tarrantez" is used to elaborate fortified wines on the island of Madeira (option B).
Madeira is a Portuguese archipelago famous for its namesake fortified wine, Madeira wine, which uses several grape varieties including Tarrantez. The elaborate process of fortification, coupled with aging, gives Madeira wine its unique flavors and robustness, allowing it to be savored for many years.