14.Which of the following statements about the shape of an indifference curve iscorrect?(A) The higher the substitutability between two goods, the smaller the curvatureof the indifference curve.(B) The higher the substitutability between two goods, the greater the curvatureof the indifference curve.(C) The indifference curve of perfect complements is a straight line.(D) Both ( A ) and ( C ) are correct.