Which grape variety is known for producing intense aromas of bell pepper and blackcurrant?

The grape variety known for producing intense aromas of bell pepper and blackcurrant is Cabernet Sauvignon. This variety is celebrated for its deep and complex flavor profile, which often includes notes of dark fruits like blackcurrant (or cassis), along with herbal characteristics such as green bell pepper. The distinctive bell pepper aroma comes from specific compounds known as pyrazines, which are particularly prominent in Cabernet Sauvignon, especially when harvested from cooler climates.

While Merlot can also present rich fruit flavors, it does not typically emphasize bell pepper aromas in the same way. Cabernet Franc, although related, is more renowned for its floral and herbal notes rather than the intense blackcurrant profile associated with Cabernet Sauvignon. Syrah tends to showcase a spicier, meatier profile and does not commonly exhibit the green bell pepper notes characteristic of Cabernet Sauvignon.

Thus, Cabernet Sauvignon's signature aromas of blackcurrant and bell pepper make it the correct choice for this question.