A6. Which expression does not have the value 1?
(A) $-\frac{\sqrt{64}}{(-2)^{3}}$
(B) $-(-1)^{4}$
(C) $(-1)^{2018}$
(D) $1^{-10}$
(E) $2018^{0}$
A6. All expressions, except $-(-1)^{4}=-1$, have the value 1.