A. ACTIVE
B. Dormant
C. Weak
D. Unconcerned
Quiescent : In a state or period of inactivity or dormancy.
Active : Ngaging or ready to engage in physically energetic pursuits.
Dormant : Having normal physical functions suspended or slowed down for a period of time.
Weak : Lacking the power to perform physically demanding tasks.
Unconcerned : Showing a lack of worry or interest.
Antonym of Quiescent is Active.