Which one of the following sets of elements was primarily re

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Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?

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[UPSC IAS Prelims 2012]

A Hydrogen, Oxygen, Sodium

हाइड्रोजन, ऑक्सीजन, सोडियम

B Carbon, Hydrogen, Nitrogen

कार्बन, हाइड्रोजन, नाइट्रोजन

C Oxygen, Calcium, Phosphorus

ऑक्सीजन, कैल्शियम, फास्फोरस

D Carbon, Hydrogen, Potassium

कार्बन, हाइड्रोजन, पोटेशियम

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