Final answer:
The primary purpose of cancer registry standards is to protect the integrity of the data collected by cancer registries. Hence the correct answer is option 4
Step-by-step explanation:
The primary purpose of cancer registry standards is to protect the integrity of the data collected by cancer registries.
By having standardized rules and guidelines in place, the data recorded by cancer registrars can be consistent and reliable. This ensures that the information is accurate and can be used for various purposes, such as providing references for cancer registrars, allowing reports to be written in a standard language, and providing information to researchers using the data.
The primary focus, however, is to maintain the integrity of the data so that it can be used effectively for research, policy making, and improving cancer care.
Hence the correct answer is option 4