The article states:

In the early days of NASA, astronauts were military test pilots, who were usually White males of a certain height.

The author's purpose for writing this passage was to __________.

suggest that military training is the best preparation for space flight
argue that requiring early astronauts to be a certain height was unfair
point out that Watkins' lack of flying experience could affect her work on the mission
highlight the importance of Watkins' achievement by presenting its historical background

highlight the importance of Watkins' achievement by presenting its historical background