The answer is (a.) Archaebacteria
Archaebacteria or Archaea are prokaryotes. They have no cell nucleus. They don't even have membrane-bound organelles in the cells. These bacteria can utilize methane as their source of energy but oxygen is not vital for their survival.
Explanation:
Continental drift is the theory which states that the continents of the earth moved away from each other over a period of time. It is believed that this theory was opposed by many scientists because they stated that there weren’t enough evidence of mechanism to prove the drift between the continents.
However, it was also rejected because this theory opposed many ongoing geological theories like geosyncline theory, uniformtarism theory even when sufficient evidences were there to prove the continental drift theory.
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