$24-$ For the circuit shown, if the forward voltage of the green diode is $\backslash ((\backslash$mathrm$\{$Vd$\}=2\backslash$mathrm$\{$~V$\})\backslash )$ the value of the current through the LED is

a$-4\mathrm{.}54$ mA

b$-5\mathrm{.}136$ mA

c$-5\mathrm{.}454$

$($d$)0$ mA