Julia con ropa casual para ir al trabajo.
se maquilla
se viste
se cepilla
se acuesta

The right option that fills the blank is:

- Julia se viste con ropa casual para ir al trabajo.

Explanation:

Firstly, you must know the translation of the sentence and the options:

- Julia dresses in casual clothes to go to work.

As you can see, the complement of the sentence refers to a specific type of clothing that the noun uses for his work, therefore, the only option you can apply for clothing is "dresses", the other options are eliminated due to that the sentence would lose coherence.