-As shown in the accompanying figure, once a system becomes stable, maintenance costs usually remain low and involve minor _____ maintenance.
A) corrective
B) adaptive
C) perfective
D) preventive

Question

-As shown in the accompanying figure, once a system becomes stable, maintenance costs usually remain low and involve minor _____ maintenance.​
A) corrective 
B) adaptive 
C) perfective 
D) preventive

Quizplus · Accepted Answer

The Answer of 
-As shown in the accompanying figure, once a system becomes stable, maintenance costs usually remain low and involve minor _____ maintenance.​
A) corrective 
B) adaptive 
C) perfective 
D) preventive

-As Shown in the Accompanying Figure, Once a System Becomes