Rules can be made by appropriate governments or competent authorities by notifying the rules

The correct answer is: A. In the official gazette.

The official gazette is a government publication that contains official notices, proclamations, and other documents. It is the official medium for publishing rules and regulations made by the government.

Option B is incorrect because the website of the appropriate government is not an official medium for publishing rules and regulations.

Option C is incorrect because the websites of Information Commissions are not official mediums for publishing rules and regulations.

Option D is incorrect because at least one of the options is correct.