Question

Which source would be most useful for a journalist writing an article on NASA's long-term plans for a manned mission to Mars? (3 points)

Science fiction novels set on Mars or featuring journeys to Mars

An encyclopedia article on NASA's successful missions to Mars

A series of articles on the ambitions of businesses interested in space travel

Recent press releases from NASA spokespersons familiar with ongoing projects

Answer 1

Recent press releases from NASA spokespersons familiar with ongoing projects.

This is the only source that you can fully 100% trust. Since the project is about NASA, using a person that is familiar with ongoing information helps to make sure you don’t get any wrong information.