The amino acids in a polypeptide chain are linked by peptide bonds. Once linked in the protein chain, an individual amino acid is called a residue, and the linked series of carbon, nitrogen, and oxygen atoms are known as the main chain or protein backbone.
The best answer for this question is option E "Employers should adhere to certain health and safety standards for the wellbeing of employees." Occupational Safety and Health Act (OSHA) is all about safety of a employers workers. OSHA mainly talks about hazards, training before using a machine or tool, make sure there is no safety hazards that can affect the workers health.
Hope this helps!
Nonportrit
Why wouldn’t you just look the words up online?