Select the appropriate antonym for the underlined word:

How does one rectify voltage fluctuations?

stabilise

The correct answer is Option (3) - stabilise

• The word "fluctuation" refers to irregular or inconsistent changes. Its antonym would represent steadiness or consistency.
• "Stabilise" means to make something steady or constant, making it the correct antonym for "fluctuation."

OTHER OPTIONS

1. "Energise": Means to give energy or vitality, unrelated to fluctuation.
2. "Manifestation": Refers to the appearance or display of something, not connected to the idea of fluctuation.
3. "Activate": Means to start or set into motion, which does not oppose fluctuation.