What is the biological test used to check the effectiveness of the sterilization process?

The correct answer is B. Spore test.

A spore test is a biological indicator used to check the effectiveness of the sterilization process. These tests involve placing bacterial spores on a carrier, subjecting them to the sterilization process, and then incubating them to see if any spores survived. If no spores survive the process, it indicates that the sterilization method was effective in killing potentially harmful microorganisms.

Options A, C, and D are incorrect: A. Culture test - While a culture test can be used to check for the presence of microorganisms, it is not specifically used to assess the effectiveness of the sterilization process. C. Blood test - Blood tests are used to assess the levels of various substances in the blood or detect the presence of infection or other medical conditions. They are not used to check the effectiveness of sterilization. D. Urine test - Urine tests are used to detect various substances in the urine to assess kidney function, detect the presence of infection, or other medical conditions. They are not used to assess sterilization effectiveness.