to search for life on planets other than Earth to land on a planet in another solar system to determine the composition the Sun to send a human to land on the Moon
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: The National Aeronautics and Space Administration (NASA) is the agency responsible for the space program in the United States. What was the goal of NASA's Apollo program?
Possibilities:
- to search for life on planets other than Earth
- to land on a planet in another solar system
- to determine the composition the Sun
- to send a human to land on the Moon

to send a human to land on the Moon