From the given table below, solve for the effective size.

$\backslash$table$[[$Sieve Number,Diameter, mm$,$Passing rate$],[$#$4,4\mathrm{.}76,90],[$#$8,2\mathrm{.}38,64],[$#$10,2,54],[$#$20,0\mathrm{.}84,34],[$#$40,0\mathrm{.}42,22],[$#$60,0\mathrm{.}25,17],[$#$100,0\mathrm{.}149,9],[$#$200,0\mathrm{.}074,5]]$

A$.2\mathrm{.}22$

B$.0\mathrm{.}667$

C $0\mathrm{.}499$

D$.0\mathrm{.}159$