Which alcoholic beverage is made from fermented apples?

Cider is the alcoholic beverage made from fermented apples. The fermentation process involves the conversion of sugars found in apple juice by yeast into alcohol, resulting in a beverage that can range from sweet to dry depending on the types of apples used and the fermentation methods applied.

Whiskey, in contrast, is distilled from grains such as barley, corn, rye, or wheat, and does not involve apples in its production. Brandy is generally made from fermented fruit juice, but it is most commonly associated with grapes rather than apples, although apple brandy does exist, it is not simply referred to as brandy. Mead is an alcoholic drink made from fermented honey and usually has no relation to apples at all.

Therefore, cider is the clear choice as the beverage that directly results from the fermentation of apples.