Explanation:

- Option 1: NASA

NASA is the United States' space agency known for numerous high-profile missions. However, it is not responsible for launching the world's smallest satellite-carrying rocket recently.

- Option 2: ISRO

The Indian Space Research Organisation (ISRO) has a notable track record in space missions, including launching small satellites. They recently launched the Small Satellite Launch Vehicle (SSLV).

- Option 3: CNSA

The China National Space Administration (CNSA) conducts many space missions but did not launch the world's smallest satellite-carrying rocket recently.

- Option 4: JAXA

The Japan Aerospace Exploration Agency (JAXA) recently achieved this milestone by successfully launching their innovative small satellite-carrying rocket.

Correct Answer: Option 4, JAXA.

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