Luna-2, the spacecraft sent back data confirming the lack of any appreciable magnetic field surrounding the Moon
Answer: Option A
Explanation:
The first spacecraft made by humans which orbits as a celestial body in space sent data back which assured the absence of any magnetic field surrounding the moon for the appreciable amount was Luna 2.
The lunar spacecraft was send according to the Luna programme of Soviet Union, which was the sixth on the row launched in 1959 on 12th of the September month.