Write a short statement that expresses a possible relationship between the variables. K (size of diamond, cost of the diamond) Choose the correct answer below. O A. As the size of a diamond increases, the cost of the diamond increases. O B. As the cost of a diamond increases, the size of the diamond decreases. O C. As the size of a diamond increases, the cost of the diamond decreases. O D. As the cost of a diamond increases, the size of the diamond increases