Which of the following describes all values of n for which n

Which of the following describes all values of n for whichn^2-1\geq{0}

(A)n\geq{1}
(B)n\leq{1}
(C) 0\leq{n}\leq{1}
(D)n\leq{-1} orn\geq{1}
(E)-1\leq{n}\leq{1} ]

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Source: Veritas Prep; Book 04
Chapter: Homework
Topic: Algebra
Question: 77
Question: Page 210
Edition:
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