Answer:
I believe it is 2, faith in human reason. 
Explanation:
The Enlightenment was an intellectual and philosophical movement that dominated the world of ideas in Europe during the 18th century, "The Century of Philosophy." Central to Enlightenment thoughts were the use and celebration of reason. The goals of rational humanity were considered to be knowledge, freedom, and happiness.
Apologies if I am incorrect. 
 
        
             
        
        
        
Late in the evening- adjective phrase.
child reads a book-adverb phrase.
        
             
        
        
        
A run-on sentence is two incorrectly joined independent clauses.
That is the case of the B.
The two clauses are 1) "Movies are a great escape", and 2) "I go to the cinema often".
You can fix the error by using end punctuation or a semicolon after the first clause.