Basically all of the choices given are failure of negative feedback mechanisms to maintain homeostasis. The correct option among all the options that are given in the question is the last option or option "E". I hope that this is the answer you were looking for and it has come to your help.
        
             
        
        
        
Considering answers;
-fever 
-constricted veins 
-swollen veins 
-confusion
Answer; 
Swollen veins
Swollen veins might be a symptom of a person whose vein valves are not functioning properly and are causing fluid it flow away from the heart. 
Explanation; 
Valves are structures that are found in the circulatory system both in the heart and the veins.
They function to prevent the back flow of blood. 
They do so by ensuring the continuous flow of blood in one direction.
If the valves are not functioning properly it may lead to various effects such as swollen veins due to the back flow of blood which may lead to the pooling of blood in the extremities. 
 
        
             
        
        
        
Answer:
Explanation:
c. stimulating the release of luteinizing hormone
 
        
             
        
        
        
Answer:
The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.