A newborn elephant is gaining weight according to the equation e=62.5m+250 , where e is the elephant's weight in pounds and m is the elephant's age in months. A newborn giraffe is gaining weight according to the equation g=50m+160 , where g is the giraffe's weight in pounds and m is the giraffe's age in months. Which statement is true? A The birth weight of the giraffe is 90 pounds less than the birth weight of the elephant. B The elephant weighed five times as much at birth as the giraffe weighed at birth. C The rate of weight gain for the giraffe is 10–15 pounds greater per month than the rate of weight gain for the elephant. D The elephant's weight is increasing at a rate of 1 pound every 62.5 months and the giraffe's weight is increasing at a rate of 1 pound every 50 months.