Task: Question Answering
Input (English): What is the difference between magma and lava?  
 (A) Magma is below ground. Lava is above ground. (B) Magma is cool. Lava is hot. (C) Magma comes out of earthquakes. Lava comes out of volcanoes. (D) Magma is solid. Lava is liquid.
Output (English): A