Answer:
A 
Explanation:
because b its not in a valley its a top a hill
not c cuz colossus of rhodes its LITTERLY COLOSSUS 
and cant be d cut it cant burn down its made of marble
 
        
             
        
        
        
An acute angle is less than 90 degree ;)
        
                    
             
        
        
        
DescriptionIguazú Falls or Iguaçu Falls are waterfalls of the Iguazu River on the border of the Argentine province of Misiones and the Brazilian state of Paraná. Together, they make up the largest waterfall system in the world. The falls divide the river into the upper and lower Iguazu.
        
             
        
        
        
Astronomers use redshirts to track the rotation of our galaxies, tease out the subtle tug of a distant plant on its parent star, and measure the expansion rate of universe.