Task: Question Answering
Input (English): Petrified palm trees are found in sedimentary rock near glaciers. The presence of the petrified palm trees most likely provides evidence for which statement?  
 (A) There was once more water in the area. (B) The area was once grassland. (C) The climate in the area was once tropical. (D) There are active faults in the area.
Output (English): C