Final answer:
The answer is B) Create a variable formula, create variable rate profile and include them in one eligibility profile, and then associate the eligibility profile with a standard rate.
Step-by-step explanation:
The answer to this question is B) Create a variable formula, create variable rate profile and include them in one eligibility profile, and then associate the eligibility profile with a standard rate. By combining the variable formula and rate profile into one eligibility profile, you can associate them with the standard rate effectively.