What is an important topic to include in parent teaching prior to immunizations?

Rationale: A. While cost may be discussed in certain settings, it is not the most important topic related to vaccine safety and effectiveness. B. Informing parents about potential side effects (e.g., mild fever, soreness at the injection site) helps prepare them for what to expect and builds trust in the immunization process. C. Although completing the schedule is important, discussing side effects is more immediate and relevant before administration. D. Promoting alternatives to vaccination undermines evidence-based practice and is not appropriate for vaccine education.