Task: Question Answering
Input (English): The theory of continental drift states that the land masses called continents were once closer together and have drifted apart over time. Which circumstance is the strongest evidence in support of this theory?  
 (A) the migration patterns of birds (B) the periodic climate changes of Earth (C) the large variety of animals on each continent (D) the similarity of fossils on different continents
Output (English): D