The answer is one and three
        
             
        
        
        
The answer would be propaganda.
I hope that helped :)
        
             
        
        
        
Since the only way to find out if a line is written in a trimeter, or pentameter, etc. is to count the number of syllables, and then divide that number by two to get the meter, that is exactly what we are going to do here.
This line has 8 syllables: (a tree whose hung- ry mouth is prest), we should divide it by 2, which equals 4. 
So, the correct answer is that this line is an example of iambic tetrameter. Tetra means 4.