Which sentence best expresses the central idea of this speech?
a) Indoor farming utilizes cutting-edge technology to address the challenges faced by traditional farmers, offering a sustainable solution for the future of agriculture.
b) Indoor farming is detrimental to the environment due to its heavy reliance on resources and its potential to cause food scarcity.
c) Indoor farming is unnecessary as traditional agriculture methods are sufficient to meet the demands of a growing global population.
d) Indoor farming is a threat to the well-being of society, as it relies on harmful pesticides and depletes essential natural resources.
