Which winery below was the first to plant chardonnay in the Napa Valley?

D.

Stony Hill, a small cult winery on the lower hills of Napa Valley’s Spring Mountain, planted Chardonnay in 1947 and became famous for creating the first mailing list of customers who regularly bought the wine. (The mailing list was handwritten on index cards). Schramsberg Vineyards planted chardonnay for its sparkling wines in 1965. The Robert Mondavi Winery’s first chardonnay was planted in 1970. And Beringer, which was founded in 1876, first made chardonnay in 1978 from grapes planted a few years earlier.