During an illness it is not unusual for a child to experience: A) projection. B) regression. C) introjection. D) sublimation.

## Step 1<br />The question is asking about the psychological responses a child might exhibit during an illness. The options provided are all defense mechanisms according to Freudian psychology.<br /><br />## Step 2<br />Let's define each of these defense mechanisms:<br /><br />### **Projection**<br />This is when an individual attributes their own unacceptable thoughts or feelings onto someone else.<br /><br />### **Regression**<br />This is when an individual reverts to a previous stage of development in order to cope with stress or anxiety.<br /><br />### **Introjection**<br />This is when an individual internalizes the beliefs or attitudes of others.<br /><br />### **Sublimation**<br />This is when an individual channels their unacceptable impulses into socially acceptable behaviors.<br /><br />## Step 3<br />Given the context of the question, which is about a child's response during an illness, the most likely defense mechanism would be regression. This is because children, when faced with stress or anxiety (such as illness), may revert to behaviors typical of a younger age as a coping mechanism.