There are five ladies who have applied for the position of dance teacher. Among them, two of them are over 30 years old, and the other three are younger than 30 years old. Two ladies have worked as a dance teacher. Teacher, the other three have been secretaries before. Now I only know: A and C belong to the same age group, D and E belong to different age groups. B and E have been in the same occupation, and C and D are in different occupations.
appropriate for the principal to select a girl over the age of 30 who has been a teacher as a dance teacher?
D