**Explanation:**

Repeal means to revoke or annul a law, rule, or regulation. It is the act of officially canceling or ending something. In the given options, the correct answer is option 'D' - Cancel.

**Reasoning:**

Let's analyze each option to understand why option 'D' is the correct answer:

a) Sanction: Sanction refers to the official permission or approval for an action. It does not have the same meaning as repeal, which is to cancel or revoke something. Therefore, option 'A' is incorrect.

b) Perpetuate: Perpetuate means to cause something to continue indefinitely or to prolong its existence. It is the opposite of repeal since it implies the continuation or preservation of something. Therefore, option 'B' is incorrect.

c) Pass: Pass means to approve or enact a law, rule, or regulation. It is the opposite of repeal since it implies the creation or establishment of something new. Therefore, option 'C' is incorrect.

d) Cancel: Cancel means to officially revoke or annul something, putting an end to its validity or existence. This aligns perfectly with the definition of repeal. When a law is repealed, it is effectively canceled or revoked. Therefore, option 'D' is the correct answer.

In conclusion, the correct answer is option 'D' - Cancel because it accurately represents the meaning of repeal, which is to officially revoke or annul a law, rule, or regulation.