The director wants a chance to get to know the person. When a director is casting, they are keeping a lot of things in mind such as whether this is a person who takes direction or whether this person is and enjoyable person to work with. Hope this helps :)
Answer:
Dang that deep and very cool
Explanation:
I think the answer is 'purity' as it makes the most sense. Purity is represented by the color white, while green is either jealousy or happy/calming(rebirth). New ideas can be symbolized by green, as in a green flag or a green light.