3. Assuming proper storage conditions, a manufacturer expiration date of 09/26 means that the product's quality and efficacy is guaranteed until:

Answer: D

Explanation:

The product's quality and efficacy is guaranteed until September 30, 2026.

A manufacturer expiration date of 09/26 indicates that the product is guaranteed to maintain its quality and efficacy until the last day of September 2026.

A) August 31, 2026.

This option is incorrect because it suggests that the product expires at the end of August, which does not align with the manufacturer expiration date of September 26, 2026. The product should be good through the entire month of September.

B) September 1, 2026.

This option is also incorrect as it implies that the product's efficacy ends on the first day of September. The expiration date indicates that the product is valid until the end of September, not just the beginning.

C) September 26, 2026.

While this option appears close, it is incorrect because it suggests the product's efficacy ends on the day of the expiration date. However, most expiration dates typically mean that the product is effective until the last day of the specified month.

D) September 30, 2026.

This option is correct because it accurately reflects that the product's quality and efficacy are guaranteed until the end of September 2026, which is the last day of the month following the expiration date.

Conclusion

The correct answer, September 30, 2026, clearly indicates the full duration of efficacy based on the manufacturer's expiration date. All other options fail to recognize that expiration dates generally allow for the product's use up until the end of the specified month. Therefore, it is crucial to understand that expiration dates are typically inclusive of the entire month indicated.