[Solved] Which of the following is true? A) The volatility skew for equities is much more pronounced now than it was in 1985. B) The volatility skew for equities has a positive gradient C) The volatility skew for equities is consistent with the Black-Scholes-Merton model. D) The volatility skew for equities is similar to that for foreign currencies. Economically Important: Referring to plants, animals, or minerals that have considerable value or significance to human economies. Cycads: Ancient seed plants with a large crown of compound leaves and a stout trunk, often mistaken for palms or tree ferns. Ginkgo: A member of an ancient gymnosperm group that consists of a single living representative (Ginkgo biloba), a hardy, deciduous tree with broad, fan-shaped leaves and naked, fleshy seeds (on female trees) Nonmotile Sperm: Sperm cells that lack the ability to move or swim, which can affect fertilization capabilities.