space probe. space shuttle. lunar module. natural satellite.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: In 1976, the Viking I Lander was sent to Mars to analyze atmospheric gases and soil samples. The Viking I Lander was most likely a
Possibilities:
- space probe.
- space shuttle.
- lunar module.
- natural satellite.

space probe.