The correct option is D Eurythermal
Temperature is one of the most important abiotic factors in an ecosystem. For an organism to stay healthy, the enzymes within it should be able to function normally. When the body temperature gets altered due to illness, these enzymes may not be able to function normally. Organisms that can thrive within a wide range of temperatures are known as eurythermal organisms, while those that can thrive only in limited ranges of temperatures are known as stenothermal organisms.