The Investment Funds in Canada course clearly states that proficiency requirements are time-sensitive and that an individual must become registered within a specified period after completing the required examinations. According to CIFC registration rules, an individual may remain unregistered for up to one year after successfully completing the proficiency exams without having to rewrite them.

The course explains that registration is not automatic upon passing exams; rather, registration is granted only after regulatory approval. If an individual does not apply for or obtain registration within the allowed timeframe, their proficiency is considered expired, and the examinations must be rewritten to ensure current knowledge of regulations, products, and compliance obligations.

The one-year limit exists because the Canadian securities industry is highly regulated and subject to frequent rule changes. The CIFC curriculum emphasizes that “registration requirements are designed to ensure individuals remain current and competent,” and prolonged periods outside the industry may compromise investor protection.

The other options are incorrect because CIFC does not recognize 90 days, 180 days, or three years as valid unregistered grace periods. Only one year is recognized by securities regulators and self-regulatory organizations such as the MFDA and provincial securities commissions.

Therefore, Option D is the correct and fully verified answer.