What is a disadvantage of using the experimental method (related to psychology)

1. Results are highly subjective due to the possibility of human error. ...

2. Experimental research can create situations that are not realistic. ...

3. It is a time-consuming process. ...

4. There may be ethical or practical problems with variable control

1. Results are highly subjective due to the possibility of human error.  

2. There may be ethical or practical problems with variable control

3. Experimental research can create situations that are not realistic.  

4. It is a time-consuming process.

georgians assisted in financing united states war effort during world war i through both of the following options:

they bought war bonds from the government.

and

they gave food through the creation of victory/liberty gardens.

answer; i believe the correct answer is prefrontal cortex;