(5) As a child Phillip Johnson was a World War I veteran, who had lived on the Navajo Nation. The best placement for the underlined portion would be

Answer 1

It seems like there might be some confusion in your statement. Phillip Johnson, as more commonly referenced, is not known to be a World War I veteran or have lived on the Navajo Nation; he was a prominent architect and a leading figure in the postmodern architecture movement.

If you're asking where to place a specific underlined portion in a sentence or text, could you please provide more context or clarify which portion you are referring to? Once I have more details, I can help you determine the best placement!