Answer- C
The Vani-Warora Highway in Vidarbha, Maharashtra is now home to the world's first 200-meter-long Bamboo Crash Barrier, dubbed "Bahu Balli."
This innovative barrier has been approved by the Indian Road Congress and offers a more environmentally-friendly option to steel barriers, with greater recycling potential.
The bamboo used is of the 'Bambusa Balcoa' variety and is treated with creosote oil, then coated with recycled High-Density Poly Ethylene (HDPE).