Listen carefully and answer, it has correct grammar as listen carefully to answer doesn’t make sense.
        
             
        
        
        
Comma splices are compound sentences that are not punctuated properly. It occurs when a comma is used between two independent clauses. This creates a problem since a comma alone cannot be used to separate two independent clauses. 
The sentence that contains a comma splice is option B: 
These mouthparts are called the mandibles they are jaw-like structures beetles use for crushing food or defending themselves.
 
        
             
        
        
        
Answer: good person
Explanation:
It means that he was a good person