Answer:
Conservative style.
Casual style.
Step-by-step explanation:
A conservative style for women between 20-40 is often used. Conservative style refers to dress conservatively: shirt, shoes, accessories, make up, appropriate hair dress. However, this style is most used after 30. So, between 20 and 30 is most used a casual style, which fits for different kind of contexts and situations. Also, at that age, women don't have much formal jobs, where is used a more conservative style, which can comprehend: jeans, boots, sandals, sundresses, shorts, mainly depends on the occasion.
Therefore, the style range could be from casual to conservative.