Those who learn sign language as teens never become as fluent as children exposed to sign language from birth.This best illustrates the importance of ________ for mastering language.

Question

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The fact that individuals who learn sign language as teens do not become as fluent as those exposed to it from birth highlights the concept of a critical period for language acquisition. This refers to a developmental period during which the brain is particularly receptive to acquiring certain skills, such as language, and beyond which it becomes more difficult to do so. Option A (an outcome simulation) and Option B (telegraphic speech) are not directly related to the concept of critical period, and Option D (universal grammar) refers to a hypothesis about the innate structure of language rather than the process of language acquisition.

Those Who Learn Sign Language as Teens Never Become as Fluent