My Set No. Is 4, code: 001/1/4. As per me and my teachers, the answer to question 46 should be (b) and not (a) because showing concern does not mean playing a role. Somebody plays a role in someone's life my doing an action, by taking a step. Sado's father, just by showing concern did not play a role in his life but by sending him to America, he did. This is very obvious because a person plays a role when he does something. Simply by being concerned, nobody makes a difference. After all, "action speaks louder than words." Concern isn't enough to play a role, to make a difference, action is essential.