Water flows though a $5mm$ diameter pipe with a velocity of $0\mathrm{.}1\frac{m}{s}.$ The pipe friction factor is

$0\mathrm{.}0128$

$0\mathrm{.}0064$

$0\mathrm{.}128$

$0\mathrm{.}00064$

$0\mathrm{.}00128$