Consider the following instance variable and method.

private String$[]$ words;

public void mystery$($int n$)$

$\{$

for $($int k $=$ n; k $<$ words.length $-1$; k$++)$

$\{$

words$[$k$]=$ words$[$k $+1].$substring$(0,$ n$)$;

$\}$

$\}$

Assume that words has been initialized with the following values.

$\{"$dragon$",$ "ogre", "troll", "goblin", $$knight$\}$

Which of the following represents the contents of the array words as a result of the call mystery$(1)?$

Group of answer choices

$\{$d$,$o$,$t$,$g$,$knight$\}$

$\{$o$,$t$,$g$,$k$\}$

$\{$dragon$,$t$,$g$,$k$,$knight$\}$

$\{$k$\}$

$\{$g$,$k$\}$