CEMC Cayley, 2002

Algebra Difficulty 1.0 Junior Find the answer Canada

The numerical value of $2^{-2} \times 2^{-1} \times 2^0 \times 2^1 \times 2^2$ is

(A) $4$ (B) $1$ (C) $0$ (D) $\frac{1}{4}$ (E) $\frac{1}{2}$

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