Modern scientific and technological achievements have created advanced medicine, prolonged human life and reduced the mortality rate of newborn babies. Coupled with the long-term peaceful environment after the Second World War, some countries only implemented family planning policies very late. The world's population has grown rapidly, and it is expected that the end of the world will reach 6.4 billion. This sentence mainly supports the argument that? ['Modern technology extends human life and reduces infant mortality.', 'Uncontrolled population growth is the negative impact of modern technology.', 'Stable fertility era caused by a combination of factors has led to a large increase in population.', "The growth of the world's population is rising geometrically."]