Final answer:
The grace period following a missed quarterly health insurance payment typically lasts for 30 days, meaning Dan's final day to pay without penalty would likely be April 30, assuming standard practices.
Step-by-step explanation:
When considering a health insurance premium payment that is due quarterly, a grace period is typically provided should payment be missed on the initial due date. The duration of the grace period can vary depending on the policy, but it often ranges from 30 to 31 days. If Dan's payment is due on April 1 and he fails to make the payment on time, we should count the grace period from that date. A full month after April 1 would make the last day of the grace period either April 30 or May 1, depending on the terms of the policy. Without specific information about Dan's health insurance policy's terms, we can only make an educated guess.
However, based on standard practices, the most likely situation is that the grace period would include the entire calendar month of April, making April 30 the final day of the grace period, which is Option C. April 30.
This would typically give Dan a full month to pay his premium before his insurance coverage is potentially terminated for non-payment. Thus, assuming a standard 30-day grace period, the final answer would be April 30. As deadlines and grace periods are critical in health insurance agreements, it is always best to consult the specific policy document or contact the insurance company for confirmation.