$(ab+ba)(aba)bab$

Assume $L_1$ and $L_2$ are regular languages defned over the alphabet $=(a,b).$ Which one of the following options ponceming statements $A,B.$ and $C$ is comect?

Statement A$.$L ${?}^{**}$ is regular

Stanement B $\mathrm{.}1$ ; is not nocessarily reguar

stmement $C$:$L_1{L}_2$ is regular.

Stalertrert A is false

Statemem if is falsa

Staterrent C is fave:

A$.$ Af the statements are true