Final answer:
A person supporting Hubert Humphrey would have been most likely to live in Chicago, as it was the host city for the Democratic National Convention and aligned with Humphrey's urban-focused Great Society vision. The correct option is b.
Step-by-step explanation:
A person supporting Hubert Humphrey during the time of the Democratic National Convention would have been most likely to live in Chicago. The convention was met with significant antiwar protests, particularly from those who were frustrated with Humphrey's stance on not committing to an immediate end to the war.
The Mayor of Chicago, Richard Daley, was determined to maintain law and order, and the city saw a massive increase in law enforcement presence to deal with the protesters.
This urban setting, being the site of the convention and representing the establishment against which many protesters were rallying, suggests that a Humphrey supporter would have aligned with the established political order and thus would more likely be a resident of the hosting city.
Additionally, the vision of President Johnson's Great Society, which was being promoted by Hubert Humphrey, was centered on urban development and addressing the needs of city dwellers.
Given Chicago's prominence as a major American city, it is likely that Humphrey's platform would appeal to its inhabitants, particularly those invested in urban renewal and development. The correct option is b.