The correct answer is A, WHEN THEY ARRIVED AT THE BEACH. 
In English language, an adverb is one of the part of speech. An adverb is a part of speech that talk more or qualifies a verb. It can also be used to qualify an adjective, another adverb or a clause. An adverbial dependent clause refers to an adverbial clause that can not stand alone. In the question given above, the statement given in option A is an adverbial clause, which quality the verb 'arrived'.
 
        
                    
             
        
        
        
Answer:
The answer is D.
Explanation:
You have to have something to back it up with.
 
        
                    
             
        
        
        
Answer:
Personal Health is important because we need to make sure we are taken care of before we try to care for others, if our health isn't taken care of it will be a challenge to be able to even work or be able to do all your tasks put at hand. If we are healthy then we are able to work and the economy is benefiting from this and so are you by working.