Which one among the following is not a Mars rover?

Which one among the following is not a Mars rover?

Sojourner
Opportunity
Curiosity
Apollo
This question was previously asked in
UPSC CAPF – 2013
The correct option is D.
– The question asks to identify which of the given options is *not* a Mars rover.
– A) **Sojourner:** This was NASA’s first wheeled vehicle to rove on Mars, landing as part of the Mars Pathfinder mission in 1997. It is a Mars rover.
– B) **Opportunity:** This was one of NASA’s two Mars Exploration Rovers (MER-B), active on Mars from 2004 to 2018. It is a Mars rover.
– C) **Curiosity:** This is NASA’s Mars Science Laboratory (MSL) rover, which landed on Mars in 2012 and is still operational. It is a Mars rover.
– D) **Apollo:** This refers to NASA’s series of missions that landed humans on the Moon between 1969 and 1972. It is a lunar program, not a Mars rover.
Besides these, other notable Mars rovers include Spirit (NASA, MER-A), Perseverance (NASA, part of Mars 2020 mission), and Zhurong (CNSA, part of Tianwen-1 mission).