The author mentions the two high mountains in order to show that it is ______. A: reasonable for Biarni to land precisely at his father's home B: possible to sail from Norway to Greenland without modern navigational equipment C: likely that Biarni landed on America at least 100 years before Leif Erikson D: probable that Leif Erikson followed the same course as Biarni

The author's primary concern is to demonstrate that ______. A: Leif Erikson did not visit America B: Biarni might have visited America before Leif Erikson C: Biarni did not visit Wineland D: Leif Erikson visited Wineland first

Is it possible that the entire tale is but a garbled account of that voyage and Biarni another name for Leif A: detailed B: plausible C: distorted D: eye-witness

Is it possible that the entire tale is but a garbled account of that voyage and Biarni another name for Leif A: detailed B: B. plausible C: C. distorted D: eye-witness