Answer:
C. determine the chemical composition of rocks and soil on Mars
Step-by-step explanation:
Opportunity-Robotic vehicle was sent on Mars in 2003 and it became active on its surface from 2004 to mid 2008. Opportunity is also known as Mars Exploration Rover B (MER-B).
The main goals of this mission were:
1. To find if there is any scope for life to exist on the planet (to find presence of water)
2. To find about climate and geology of the planet so that humans can be sent in future on the planet.
This includes the determining the chemical composition of the rocks and soil on Mars.