Which of the following is not an instance of an exercise of a Fundamental Right?

Which of the following is not an instance of an exercise of a Fundamental Right?
(a) Workers from Bihar go to the Punjab to work on the farms
(b) Christian missions set up a chain of missionary schools
© Men and women government employees get the same salary
(d) Parents’ property is inherited by their children

(d) Parents’ property is inherited by their children