Suppose that you declare two String objects as:

$4.$

String word$1=$ new String $("$happy$")$ ;

$5.$

String word$2=$ new String $("$happy$")$;

$6.$

$7.$

The value of word$1.$ equals $($word$2)$ is

$8.$

a$.$ true

b$.$ false

c$.$ illegal

d$.$ unknown