$//$ Copy Constructor

Hello: :Hello$($const Hello& other$)\{$

data $=$ new int $4$;

$\}$

$//$ User define constructor

Hello::Hello$($int$*$ other$)\{$

data $=$ other;

$\}$

$//$ Destructor

Hello:: Hello$()\{$delete$[]$ data; $\}$

int main$()\{$

Hello a;

Hello $b=a$;$\frac{,}{\frac{?}{?}}$ Statement $x$

return $0$ ;

$\}$

a$.$ No errors.

b$.$ Yes there is an error, the source of the error is the copy constructor.

c$.$ Yes there is an error, the source of error is the statement $x.$

d$.$ Yes there is an error, the source of the error is the user define constructor.

e$.$ Yes there is an error, the source of error is the destructor.