Which option BEST reflects the central argument of the author?(A)Yang's team's research will contribute to the creation of new materials.(B)Electron microscopes are a critical piece of materials research.(C)Human hair can support an entire person's weight.(D)Keratin protein makes up all hair across species.

A)Yang's team's research will contribute to the creation of new materials.

Explanation:

A central argument in this Newsela article by Susanne Bard is that the discoveries made by the scientist Wen Yang and her team, who studied the human hair will be helpful in producing new materials such as very strong ropes that cannot easily cut during rescue operations.

This aspect of scientific research mimics the natural order of things so as to help scientists in innovating new products that will be beneficial to man. Yang hopes to streamline this new discovery to the Nano level before it can be harnessed by manufacturers.