Final answer:
The most suitable group to conduct the survey with minimal bias would be a university.
Step-by-step explanation:
The most suitable group to conduct the survey with minimal bias would be group D, a university.
Universities are typically independent and have expertise in conducting unbiased research. They have the necessary resources and knowledge to create a well-designed survey and analyze the data objectively.
On the other hand, groups A, B, and C may have a vested interest in the results due to their involvement in the production or sale of rope materials, which could introduce bias into the study.