What are the scientific goals for the Mars Science Laboratory? HELP PLEASE

A. correcting the packaging of the MSL mission components that has been the essential technology of all space missions

B. what kinds of technology to use for landing, what kind of instruments to use on the rover, how to power the rover and how to control the Mars Science Laboratory

C. to determine if Mars could have ever supported life, study the climate and geology, gain knowledge for future manned mission to Mars

D. completing the technology design process and constructing an MSL prototype that would successfully land on Mars

E. what kinds of technology to use for landing, what kind of instruments to use on the rover, how to power the rover and how to control the Mars Science Laboratory