Question

many companies and individuals are going __, which means they are using technology to lower their consumption and reliance on paper. biotech automated nanotech paperless

Explanation:

The sentence describes using technology to reduce paper consumption. "Paperless" directly relates to minimizing paper use. "Biotech" (biotechnology) is about biological systems, "automated" is about machinery/processes being automatic, and "nanotech" (nanotechnology) is about manipulating matter at the nanoscale. None of these other terms fit the context of reducing paper use as well as "paperless".

Answer:

paperless