For the Following Issue,discuss Which Source You'd Trust More,and Give

For the following issue,discuss which source you'd trust more,and give at least one reason why.You may want to add to or otherwise modify our list of sources.And do keep in mind that we are glad our livelihoods do not depend on a general consensus on our rankings.
Issue:Whether Viking explorers actually landed in the New World before Columbus.
a.a historian
b.the publisher of a Norwegian-language newspaper in Willmar,Minnesota
c.a Norwegian archeologist
d.an Italian archeologist
e.an archeologist of French ancestry who grew up in Texas