Final answer:
The Polynesian cultural norm involving the use of fish bones is Tattooing, which serves as a significant cultural practice modulating identity and status within various Polynesian tribes.
Step-by-step explanation:
The Polynesian cultural norm that is accomplished with the use of fish bones is B. Tattooing.Tattooing in Polynesian culture holds a significant historical importance as a method of establishing identity, personality, and status among various tribes and communities. Examples of this can be found in the Maori, Tonga, and Samoa warrior cultures, where specific tattoo designs and placement on the body were used to demonstrate a warrior's affiliation with a particular group of elite warriors.
The technique often involved the use of fish bones as tools for inscribing designs into the skin. This practice is prevalent among different Polynesian societies, including the Maori, Tongans, and Samoans, where tattoos are not just considered body art, but are deeply embedded within their cultural heritage. The intricate patterns and symbols have various meanings and signify a person's lineage, social status, and achievements. Polynesian tattoos also serve as a testament to the wearer's bravery, due to the painful process of their application using traditional methods such as the fish bone needles.