A 1000 gallon tank, initially full of water, develops a leak at the bottom. Given that 200 gallons of water leak out in the first 10 minutes, find the amount of water, A(t), left in the tank t minutes after the leak develops if the water drains off at a rate proportional to the amount of water present. a) A(t) = 1000 (4/5)^-1/10 t b) A(t) = 1000 e^1/10 t c) A(t) = 1000 (2/3)^1/10 t d) A(t) = 1000 (1004/5)^t e) A(t) = 1000 e^-1/10 t f) None of the above.