dont copy paste plz give me clear explation thx $4.$ Which of the following statements is NOT correct? $($a$)$ If L$^$R is regular, then L is regular. $($b$)$ If L$$ is regular, then L is regular. $($c$)$ If L$^*$ is regular, then L is regular. $($d$)$ If L$$ is finite, then L is regular.