Your answer is a, opinions expressed should be supported by important facts, examples, or personal experiences. 
        
                    
             
        
        
        
If the subject consists of two or more words that are connected by and, the subject is plural and requires a plural verb. 
        
             
        
        
        
Answer:
I'm pretty sure you just take the words in the brackets and put them in the blank spots
Explanation:
 
        
             
        
        
        
The correct answer is (C), they persuaded the king to lower tariffs and help with trade.
 
        
             
        
        
        
Phrase: The cow in the shed/ Under the table
Clause: This train goes/ The house has four windows/ Because we don't have any butter
Explanation:
The difference between a clause and a phrase is that clauses always contain a subject (agent of the action) and a verb (action), while phrases usually contain one of these elements or might contain none of these. This makes clauses to express a complete idea in some cases. Knowing this, let's analyze each section to know if it is a clause or phrase:
This train goes -This contains a subject (This train) and a verb (goes), which makes it a clause
The house has for windows -This contains a subject (The house), a verb (has), and it expresses a complete idea; therefore, this is a clause
The cow in the shed- This includes a subject (the cow) but not a verb, which makes it a phrase
Because we don't have any butter -This includes a subject (we) and a verb (have), so it is a clause
Under the table -The word "table" can act as a subject but there is no action, thus, this is just a phrase.