You are researching space exploration and you find a website that details all of the Apollo space missions. In evaluating the legitimacy of the site, you examine where links go from the site. Which types of links would most add to the site's credibility?
Links out to an astronaut's Instagram page
Links out to the ice skater, Apollo Ono's, personal website
Links out to the move Apollo 13
Links out to www.Nasa.gov