Answer:

C. Rudolf Virchow and Louis Pasteur

Explanation:

Rudolf Virchow and Louis Pasteur advocated the idea that cells originate from pre-existing cells. Virchow coined the phrase "omnis cellula e cellula," emphasizing the continuity of cell formation. Pasteur's experiments debunked spontaneous generation, supporting the concept that cells come from other living cells. Their contributions laid the foundation for the principle in modern cell biology that all cells arise from pre-existing ones.