I would say the correct answer is <span>2. She has forgotten why she came. This is perhaps the most devastating and intriguing detail in the whole story. Phoenix has embarked on such a long and exhausting journey because she loves her grandson; but then her memory betrays her. Some critics even suggest the possibility that her grandson had died, which caused a trauma for Phoenix.</span>
        
             
        
        
        
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<h3>
Answer: No, it is not a run-on sentence</h3>
This is one full thought that doesn't run on for too long. The "overcome with joy" portion is the dependent clause that needs the other part "Mrs. Monroe told her husband the exciting news about her promotion" which is the independent clause. The independent clause could be its own sentence without the dependent clause, but not the other way around. 
 
        
        
        
Answer:
Blank
Explanation:
Because there is no answers to answer