Despite not providing the picture, there is enough information in the question to understand that the correct answer is alternative A) "At least 500 Million Years"
If the fossilized being lived around 500 million years ago, it means that the rock must be at least about that age.
Alternatives B and C are inconclusive, since the rock might have formed before, and with the information presented it's impossible to tell it's exact age. We can only tell that it's at least 500 million years old because of the fossil of a specimen that lived about 500 million years ago.
 
        
             
        
        
        
The answer to your question asked above is the last option or option D
        
                    
             
        
        
        
Answer:
c. using methods for growing crops
 
        
             
        
        
        
-Zhu Di: Emperor Yongle. He finally became a Emperor of China I believe. 
-Vasco da Gama: this man was a successful Portuguese explorer. One of them was that he went from I believe it was Portugal and India. I believe that's where he went, but that one of his big achievements.
 
        
                    
             
        
        
        
Answer:
B. increasing military strength
D. expanding space programs
E. government control of the economy
F. stopping uprisings in Eastern Europe
  
I got it right on Edge.
Explanation:
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