Final answer:
The value of the angular acceleration of the second hand of the clock on the wall is zero.
Step-by-step explanation:
The value of the angular acceleration of the second hand of the clock on the wall is zero (b).
Since the second hand moves with a constant speed, it has no angular acceleration. Angular acceleration is the rate of change of angular velocity, and in this case, the second hand's angular velocity is constant, resulting in a zero angular acceleration.