Answer:
Illustrate the feelings of the characters.
Step-by-step explanation:
In this passage it is obvious that Acrisius is angry because of the exclamation mark used and because it is written that he "cried on great anger". It also shows that he is in doubt about Danaë's response, because of the words used("he would not believe her"). It also gives us the hint that Acrisius just found out a long hidden secret.