110
125
60
70
Answer is Right!
Answer is Wrong!
The correct answer is A. 110.
The disturbance error is the difference between the observed value and the predicted value. In this case, the observed value is 85 and the disturbance error is 25, so the predicted value is 85 + 25 = 110.
Option B is incorrect because it is the observed value plus the disturbance error.
Option C is incorrect because it is the observed value minus the disturbance error.
Option D is incorrect because it is the disturbance error.