Tom is a counselor conducting an interview as part of his client henry's clinical assessment. tom asks a list of standardized, predetermined questions about henry's family background, information about parents, siblings, divorces, grandparents, etc. when henry answers "yes" to a question regarding a family history of mental disorders, counselor tom decides to ask henry additional questions, and they talk about this matter for about 5 minutes. what type of interview strategy is tom most likely using?