Definition: In this task, you are given a text which is the body of a document. You are given a question and options. Pick the correct number. Don't generate anything else apart from the numbers provided in options.
Input: Context: Markov is a lunar impact crater that is located in the northwestern part of the moon's near side in the Sinus Roris region of the Oceanus Procellarum. It lies to the south of the crater Oenopides and is connected to the continental region to the north by ridges along the northern rim.The rim of this crater is not appreciably eroded by impacts and retains a sharp edge at the crest.
Question: The document can be classified to which topic?
Options: 1)NaturalPlace, 2)Company, 3)OfficeHolder, 4)Film
Output:
1