Which of the following methods can be added to the UserAccount class in the tutorial to change the password?

a$.)$

public String getPassword$()\{$

return password;

$\}$

b$.)$

public int getPassword$()\{$

return password;

$\}$

c$.)$

public void setPassword$($int password$)\{$

this.password $=$ password;

$\}$

d$.)$

public void setPassword$($String password$)\{$

this.password $=$ password;

$\}$