Select the incorrect statement among the following. (1) Louis Pasteur by careful experimentation demonstrated that life comes only from pre-existing life. (2) Louis Pasteur showed that in pre-sterilised flasks, life did not come from killed yeast while in another flask open to air, new living organisms arose from ‘killed yeast’. (3) Spontaneous generation theory was dismissed by Louis Pasteur. (4) Louis Pasteur answered how the first life form came on earth.