Option D Explanation: - Metals have very low resistivity, on the order of ρ≈10−8−10−6Ω⋅m (for example, copper is about 1.7×10−8Ω⋅m ). - Their conductivity is the reciprocal, σ=
1
ρ
≈106−108S∕m Option D's intervals ρ:10−2−10−8Ωm,σ:102−108S∕m clearly include the true metallic range at the low- ρ∕ high −σ end.