You will be given a definition of a task first, then some input of the task.
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).

Paragraph: Lower rock layers were laid down earlier, so they are assumed to contain older fossils.
 Question: If Mona is excavating an archeological site and she discovers some fossils near the surface then compares them to fossils she found deeper down, which fossils will be older? 
 Choices: A)near the surface 
B)deeper down
Output:
deeper down