Fix the alphabet

$\backslash$Sigma

$=$

$\{$

a

$,$

b

$\}$

$\backslash$Sigma $=\{$a$,$b$\}.$ For each positive integer

n

n$,$ define

L

n

L

n

$$

to be the language over

$\backslash$Sigma

$\backslash$Sigma given by

L

n

$=$

$\{$

w

in

$\backslash$Sigma

$$

$$

$$

w

$$

is an integer multiple of

n

$\}$

L

n

$$

$=\{$w in $\backslash$Sigma

$$

$$w$$ is an integer multiple of n$\}$

Question $3\mathrm{.}1$ Example

Q$3\mathrm{.}1$ Example

$1$ Point

Grading comment:

Select all and only the languages below in which

a

b

b

a

a

b

abbaab is an element.