Answer:
Option D
Explanation:
According to the question

vd=2.5×10−4m/s
⇒ n=8×1028/m3
we know that J=nevd or I=nevdA
where, symbols have their usual meaning
⇒ VR=nevdA
or VρLA=nevdA
or VρL=nevd
or ρ=VnevdL
= 58×1028×1.6×10−19×2.5×10−4×0.1
or ρ =1.6×10−5 Ωm