Chile is missing something most other wine countries have. Is it:

C.

Chile is the only major wine country in the world where no phylloxera exists. A lethal insect, phylloxera devastated most of the world’s vineyards in the 19th century, after which vines were necessarily grafted onto resistant rootstock. But most of the vines in Chile today remain ungrafted. Phylloxera’s curious absence is not fully understood.