Final answer:
Experiments can be conducted in a variety of settings including laboratories, fields, and space. Each environment offers unique conditions for research, such as controlled variables in labs or real-world conditions in field experiments.
Step-by-step explanation:
Experiments can be performed in a variety of environments, each bringing unique conditions and potential insights. Laboratory experiments are typically controlled and allow researchers to manipulate variables, which is critical in fields such as biology and chemistry. On the other hand, field experiments, whether conducted in natural settings like fields or more unique locations like space, can offer valuable data that reflect real-world conditions. Astronomy provides a good example of field experiments, where space itself becomes the laboratory. Additionally, field research can involve methods such as surveys and observations outside a traditional lab setting.
In summary, experiments can be performed in fields, space, labs, or essentially anywhere research questions can be investigated and data can be collected. Therefore, the answer to the student's question is 'D. All of the above'.