Plutonium-240 decays according to the function e(t)=Q e-k where 0 represents the quantity remaining after t years and k is the decay constant, 0.00011... To the nearest 10 years, how long will it take 27 grams of plutonium-240 to decay to 9 grams? A. 1.44 years B. 2,100 years C. 9,990 years D. 18,900 years​