Correct option is D
While nano-materials have several unique properties, the claim that Homeopathy uses nano-materials is not widely accepted in mainstream science. Nano-materials, such as nano-carbon, are indeed known to be stronger than steel. Nano-fibre cloths are designed to resist dirt and bacteria, making them highly effective in various applications. Nano-medicines are a field of study where medicines are designed at the nano-scale to increase effectiveness by targeting specific cells or tissues. However, homeopathy is based on principles of highly diluted substances, and the connection to nano-materials is not scientifically established.
