Final answer:
The reinstatement period for a revoked certificate varies depending on the issuing authority's rules and the reasons for revocation. Without specific context, it's not possible to provide a correct answer. The student should refer to the specific guidelines or consult with the issuing authority.
Step-by-step explanation:
The question of how long before a revoked certificate can be reinstated is specific to the policies of the certifying authority or the laws under which the certification was provided. Generally, the reinstate period of a revoked certificate highly depends on the reasons for revocation and the regulations that govern the issuing body. If this question is related to a professional certification, legal license, or similar credential, it usually requires consulting the bylaws or regulations of the issuing organization.
Without specific context, giving an accurate answer is challenging. However, options 'a) 1 year', 'b) 2 years', 'c) 3 years', and 'd) 4 years' suggest standardized answers that might be part of specific organizational rules or legal requirements. To provide the correct answer, the student should review the guidelines or laws pertinent to the certification in question or consult with the authority that issued the certificate.