$\left(\dfrac12\right)^{-3}\left(\dfrac14\right)^{-2}\left(\dfrac1{16}\right)^{-1}=$

$\left(\dfrac12\right)^{-3}\left(\dfrac14\right)^{-2}\left(\dfrac1{16}\right)^{-1}=$

(A) $\left(\dfrac12\right)^{-48}$

(B) $\left(\dfrac12\right)^{-11}$

(C) $\left(\dfrac12\right)^{-6}$

(D) $\left(\dfrac18\right)^{-11}$

(E) $\left(\dfrac18\right)^{-6}$

Answer: B

Source: Official Guide

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