<prompt> Khetha karabo e nepahetseng ka ho fetisisaKe khase efe e ngata ka ho fetisisa sepakapakeng sa Lefatše? A. Methane B. Oxygen C. Nitrogen D. Hydrogen  <response>: Instruction in English: Choose the most appropriate answer . Response in English: The most abundant gas in Earths atmosphere is Nitrogen C. . Response in Sesotho: Khase e ngata ka ho fetisisa sepakapakeng sa Lefatše ke Nitrogen C. 