Explanation:

- Option 1: Article 189

- Article 189 pertains to the voting in Houses and the resolution of deadlocks of State Legislatures. It is not related to pardoning power.

- Option 2: Article 161

- Article 161 gives the Governor of a state the power to grant pardons, reprieves, respites, or remissions of punishment. It applies to offenses against law related to matters that the state has the authority to legislate.

- Option 3: Article 173

- Article 173 relates to the qualifications needed for membership of the State Legislature.

- Option 4: Article 150

- Article 150 is about the form of accounts of the Union and States, not related to pardoning powers.

Therefore, you are correct in your understanding.