In this question, the task is to correctly match the organizations with their associated convention, person, or headquarters. The correct option is 1.

A. Amnesty International is matched with 3. Peter Benenson. This is accurate as Peter Benenson was the British lawyer who founded Amnesty International.

B. The Commonwealth of Independent States (CIS) is paired with 1. Viskuli. Viskuli is most probably referring to the Bialowieza Agreement, which was signed in Viskuli, Belarus, marking the creation of the CIS.

C. Danube Commission is matched with 4. Belgrade Convention. This refers to the Belgrade Convention regarding navigation on the Danube, which established the Danube Commission.

D. Lastly, The European Space Agency is paired with 2. Paris. This is correct as the organization`s headquarters is in Paris, France.

All the other options contain mismatches making Option 1 the correct choice.