Which General Conclusion About the Best Interview Techniques for Children

Which general conclusion about the best interview techniques for children is FALSE?

A) Training investigators seems to increase their use of open-ended, less directive utterances.
B) Regardless of methods, most approaches say use props and dolls only as a last resort.
C) Some methods question from specific to general while others go from general to specific.
D) Research studies seem to confirm that open-ended questions elicit more useful information.