Option 1: Chairman, Finance Commission does not have the right to speak, take part in proceedings of either house of Parliament, or be a member of any parliamentary committee.

Option 2: Attorney General is the correct answer. The Attorney General has the right to speak and participate in the proceedings of either house of Parliament. They are also eligible to be a member of any parliamentary committee. However, they are not entitled to vote. The Attorney General is the highest law officer in the country and provides legal advice to the government.

Option 3: Comptroller and Auditor General (CAG) is responsible for auditing the accounts of the government. While the CAG may have an important role in overseeing financial matters, they do not have the right to speak, participate in proceedings, or be a member of any parliamentary committee.

Option 4: The Chief Election Commissioner does not have the right to speak, participate in proceedings, or be a member of any parliamentary committee. Their role is to oversee elections in the country and ensure their fairness.

In conclusion, only the Attorney General has the right to speak, participate in proceedings, and be a member of parliamentary committees, but they cannot vote.