Which of the following implementations is correct for the constructor in ToyBox?

Question $3$ options:

a$)$

template

ToyBox::ToyBox$($const ItemType& theItem, const Color& theColor$)$

$\{$

item $=$ theItem;

boxColor $=$ theColor;

$\}//$ end constructor

b$)$

template

ToyBox::ToyBox$($const ItemType& theItem, const Color& theColor$)$

$\{$

PlainBox::setItem$($theItem$)$;

boxColor $=$ theColor;

$\}//$ end constructor

c$)$

None of these answers

d$)$

template

ToyBox::ToyBox$($const ItemType& theItem, const Color& theColor$)$

$\{$

boxColor $=$ theColor;

$\}//$