I would say no because a simile is having something referred to something else for example as brace as a lion or crazy like a fox.
        
             
        
        
        
Im pretty sure that it’s B. Because in academic writing you should give attention to all sides of the issue.
        
                    
             
        
        
        
Hi, your answer is resentful. I hope this helps!! 
        
             
        
        
        
A is the answer and what I’m typing right now is so i can send this answer but it’s A
        
             
        
        
        
Answer:
It is a complex sentence.
Explanation:
There are  four basic types of sentences: simple, compound, complex, and compound-complex.
A complex sentence has one independent clause joined to a dependent clause by a subordinating conjunction.
An independent clause has a subject and a predicate, and can stand alone as a sentence, as it makes complete sense.  A dependent clause cannot stand alone.
In this case, "Kenneth sat down on the rickety old chair" is an example of an independent clause.  "as it abruptly collapsed beneath him" is a dependent clause.