Answer:
The answer is option
 C . the JFET has a PN junction
Explanation:
Not only is option C in the question a dissimilarity between the MOSFET and the JFET we can go on with some more dissimilarities.
1.MOSFET stands for Metal Oxide Silicon Field Effect Transistor or Metal          Oxide Semiconductor Field Effect Transistor.
   (JFET) stands for junction gate field-effect transistor (JFET)  
2. JFET is a three-terminal semiconductor device, whereas  MOFET a four-terminal semiconductor device.  
3. In terms of areas of application of  JFETs are used in low noise applications while MOSFETs,  are used for high noise applications
 
        
             
        
        
        
I think that it is all of the above
        
                    
             
        
        
        
Answer:
We would need background context,
Explanation:
Then I would be happy to help!