Non-metal atoms can form: ionic bonds covalent bonds both ionic and covalent bonds neither ionic nor covalent bonds

Ionic bonds form when a non-metal and a metal exchange electrons, while covalent bonds form when electrons are shared between two non-metals.
With that being said, the correct answer is non-metals can form birth ionic and covalent bonds.

Answer : According to Society of Automotive Engineering (SAE) standards the major key design change that was done for CF-12 A/C systems to HFC-134a A/C systems for the mobile A/C system service is that it provided with new service fittings which reduced the venting of refrigerants into the atmosphere and hence the mixing was also reduced with the ozone.

This new, unique and advanced quick modification has helped a lot in terms of maintaining low level of CFC emission in the environment.