Task: Question Answering
Input (English): Extensive folding of sedimentary rock layers on Earth provides indirect evidence of certain processes occurring throughout Earth's history. Which of these is most likely one of these processes?  
 (A) convective heat loss from Earth's mantle (B) slowing of the rotation of Earth's core (C) increase in the density of Earth's atmosphere (D) slow increase in the distance of Earth's orbit
Output (English): A