Please choose the correct ending to complete the given sentence: Work World: [header] How to be a chemist [title] Learn more about the different types of chemists. [step] There are many different fields of chemistry, and while they are all related to studying and performing experiments with chemical compounds, they are all unique. Some of the more common fields include the following : [substeps] Materials chemists are responsible for researching and developing materials to create new products or improve existing ones.

Ending1: Engineers with intellectual disabilities perform research on equipment and systems, rather than on individual projects. [title] Do some research on pharmacies. Ending2: Analytical chemists examine and classify various chemical compounds that can be used in new drugs. Also, they study the ways different chemicals react to each other. Ending3: Electronics chemists are responsible for researching and developing samples. Electrochemists are responsible for reading and analyzing data. Ending4: Math chemists are responsible for being proficient in mathematics, trigonometry, relativism, and sociology. Technology chemists can be skilled in the physical, mechanical, and biological sciences.

Answer format: ending1/ending2/ending3/ending4