Iwill mark you as brainlinest for correct

When a researcher debriefs her participants, she: provides a detailed explanation of the study. removes their undergarments. tells them they can stop taking part at any time. provides an detailed explanation of the study, and tells them they can stop taking part at any time.

Anorex nervosa can be prevented but it can not be treated

Which  type  of diabetics require injectable insulin?   type iii  type iv  type i  type ii