First cellular forms of life on earth appeared - A 2000 mya B 500 mya C 4500 mya D 3000 mya
The first cellular form of life originated about 4 billion years ago. 3 billion years ago, 2000 million years ago and 50,000 years ago is after the origination of life on earth. So, before 4 billion years ago, cellular form of life did not possibly originated or present. Option C is correct.
