Which of these is the best new implementation of Course?

Group of answer choices

public class Course $\{$

private String title;

private String description;

public Course$($String $\_$title, String $\_$desc$)\{$

title $=\_$title;

description $=\_$desc;

$\}$

public String setTitle$($String newTitle$)\{$

title $=$ newTitle;

$\}$

public String setDescription$($String newDesc$)\{$

description $=$ newDesc;

$\}$

$\}$

public class Course $\{$

public String title;

public String description;

public Course$($String $\_$title, String $\_$desc$)\{$

title $=\_$title;

description $=\_$desc;

$\}$

$\}$

public class Course $\{$

private String title;

private String description;

public Course$($String $\_$title, String $\_$desc$)\{$

title $=\_$title;

description $=\_$desc;

$\}$

public String getTitle$()\{$

return title;

$\}$

public String getDescription$()\{$

return description;

$\}$

$\}$