If the first two statements are true, the third statement is : I. Oat cereal has more fiber than corn cereal but less fiber than bran cereal. II. Corn cereal has more fiber than rice cereal but less fiber than wheat cereal. III. Of the three kinds of cereal, rice cereal has the least amount of fiber.

Answer: Option A

From the first statement, we know that bran cereal has more fiber than both oat cereal and corn cereal. From the second statement, we know that rice cereal has less fiber than both corn and wheat cereals. Therefore, rice cereal has the least amount of fiber.