Given that Icr$/$Ig$=0\mathrm{.}35$ and Mcr$/$Ma$=0\mathrm{.}55$ for a beam of $300$mm and $600$ mm depth. What is the ratio of Ie$/$Ig $?$

Select one:

a$.0\mathrm{.}35$

b$.0\mathrm{.}3916$

c$.0\mathrm{.}458$

d$.0\mathrm{.}431$