How does the following quote to prove the author's purpose for writing "scratching the surface of mars"? "most of curiosity's work on the red planet is focused on determining whether life ever existed or could be supported on mars. but the science and technologies developed for this mission will certainly aid in exploration and investigation in other realms of space here and on earth." a. the author points out the technology used for this mission is inadequate, thus proving that investment must be made in newer technology. b. the author emphasizes curiosity's exploration of life on mars, thus proving how important it is to discover new life there. c. the author shows how new technology is to prove new life exists on mars, thereby giving people hope of finding new life on other planets. d. the author explains that the technology used to explore mars is not only important for space exploration, but also for exploring earth, thus emphasizing the importance of such technology