As a chemical engineer, what would you be most likely to do in your job? design robots to perform repetitive tasks
sterilize food processing equipment
design sewer treatment plants
combine microorganisms and enzymes to create new medicines

The correct option is;

Design sewer treatment plants

Explanation:

Chemical engineers, also known as a process engineer, are involved in the design and development of cost beneficial ways of utilizing energy and materials which can mostly be established as a chemical manufacturing process

The chemical engineer works by applying scientific principles to resolve and provide amicable solutions to the production usage, disposal, and waste management, of chemical and other related materials

Chemical engineers conducts research into the usage of materials and production process.