$(12$ pt$)$ Given the declarations below, write down the binary value of the object.

CONSTANT a: STD$\_$LOGIC$\_$VECTOR $(5$ DOWN TO $0)$ :$=($OTHERS $=>{?}^{\text{'}}{0}^{\text{'}})$;

CONSTANT b: STD LOGIC VECTOR $(8$ DOWN TO $3)$ :$=,$ OTHERS $\{$:$=>{?}^{\text{'}}{0}^{\text{'}})$;

SIGNAL c: STD$\_$LOGGIC$\_$V$$CTOR $(2$ TO $8)$ :$=,$ OTHERS $=>\text{'}\{$:$0^{\text{'}})$;

VARIABLE d: B$$T$\_$VECT$$OR $(0$ TO $10)$ :$=(1$ TO $4=>\text{'}1\text{'},$ OTHERS $=>\text{'}0\text{'})$;

$a=$

$b=$

$c=$

$d=$