Final answer:
In the beginning of the movie, Katherine is a widow with three children.
Step-by-step explanation:
From the information provided, the answer to the question 'Which is true of the personal life of Katherine in the beginning of the movie?' is B. She is a widow with three children. This is supported by the passage that mentions Katherine's mother having three sons before Katherine was born and that the mother is still alive and has seen six more children growing up. This indicates that there are a total of nine children, with Katherine being the youngest daughter and her father likely being deceased.