You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

Input: Consider Input: Paragraph: By using multiple stages, empty fuel containers could drop away. This reduced the mass of the rocket so that it could fly higher.
 Question: Ray was traveling in rocket leaving orbit. He ejects the empty fuel containers so the ship can fly 
 Choices: A)higher 
B)lower

Output: higher


Input: Consider Input: Paragraph: Plug-in hybrids run for a longer time on electricity and so are less polluting than regular hybrids.
 Question: Kevin has a hybrid car and Steve has a large truck. Which car likely pollutes less? 
 Choices: A)hybrid 
B)truck

Output: hybrid


Input: Consider Input: Paragraph: Fossils found at the lowest layer of rock would be the oldest, as these would have been buried for the longest time, whereas fossils found closer to the surface would be buried more recently and therefore be younger.
 Question: As we dig deeper in the search for fossils the fossils get 
 Choices: A)younger 
B)older


Output: older