Rate the following argument fragment on its writing, argument, and language skills:
Lead: In 1976 NASA released a photo of a landform on Mars resembling a human face. Not everyone was easily convinced that it was only just a landmass though. Conspiracy theorists believed that it was, "Bona fide evidence of life on Mars." In the article "Unmasking the Face on Mars," the author, Garvin, believed that it was only a mesa.

Score: 2