A.Mercury

B.Venus

C.Saturn

D.Jupiter

Ans: A.Mercury 

Exp: “MESSENGER” was a robotic spacecraft sent by NASA. The name is a reference to the messenger deity of the same name from Roman mythology was a NASA robotic spacecraft that orbited the planet Mercury between 2011 and 2015. The probe was launched aboard a Delta II rocket in August 2004 to study Mercury’s chemical composition, geology, and magnetic field.