During a panel discussion on 'The Future of Energy,' an expert stated, 'To achieve true energy independence and combat climate change effectively, we must diversify our energy portfolio beyond fossil fuels. This means investing heavily in technologies that utilize naturally replenishing resources.'
Which of the following concepts is the expert primarily advocating for?
A) Expanding the use of nuclear power exclusively.
B) Increasing reliance on imported oil and gas.
C) Transitioning towards sustainable and renewable energy sources.
D) Focusing solely on improving the efficiency of fossil fuel combustion.
E) Discontinuing all forms of energy production immediately.