Answer: A.
Nuclear engineers are concerned with the design, construction, and operation of nuclear reactors; nuclear
chemists study nuclear reactions, radioactive elements, and nuclear power.
Step-by-step explanation:
Engineers are always concerned about the design, research, maintenance and construction e.t.c
While a chemist also do research and deal with chemical reactions.
To differentiate the difference between the focus of a nuclear engineer and the job of a nuclear chemist, option A is the best answer for this which says:
Nuclear engineers are concerned with the design, construction, and operation of nuclear reactors; nuclear
chemists study nuclear reactions, radioactive elements, and nuclear power.