What is output?

char$[]$ emotion $=\{\text{'}$n$\text{'},\text{'}$o$\text{'},\text{'}$t$\text{'},\text{'}\text{'},\text{'}$s$\text{'},\text{'}$a$\text{'},\text{'}$d$\text{'}\}$;

System.out.print$($emotion$.$length$)$;

Group of answer choices

$6$

$7$

Error: index out of bounds

$3$