Answer:
A theory that was disproved by Redi and Pasteur.
Explanation:
Different theories have been put forward by the scientists to explain the evolution of life on earth. The first living organism has been evolved on earth around 3.4 billion years ago.
According to the theory of spontaneous genereation, living organisms has been evolved from the inorganic matter. This theory has been disapproved first by Redi and Pasteur. They formulated that life comes from the pre existing organism.
Thus, the answer is option (3).
