Doctors often struggle to treat eyelid myokymia, a condition where the muscle of the eyelid twitches _______. However, researchers note that these uncontrollable spasms are usually harmless and typically resolve on their own without medical intervention.
Which choice completes the text with the most logical and precise word or phrase?
involuntarily
beneficially
strenuously
smoothly
Correct Answer: A
Choice A is the best answer. The text describes the twitching as "uncontrollable spasms." "Involuntarily" means without will or conscious control, which aligns perfectly with "uncontrollable."
Choice B is incorrect because while the text says the condition is harmless, the twitching itself is defined by its lack of control, not its benefit. Choice C is incorrect because "strenuously" means with great effort. Choice D is incorrect because twitching is spasmodic, not "smooth."