What led to the creation of the Chinese Exclusion Act? (In other words: what was going
on in the country that people push for the creation
of the Chinese Exclusion Act?)

The North Adams Strike of 1870, broken by the replacement of all workers by 75 Chinese men was the trigger that sparked widespread working-class protest across the country, shaped legislative debate in Congress, and helped make Chinese immigration a sustained national issue.

he believed that congress would be better not dealing with "lobbyists", or people who seek to influence (a politician or public official) on an issue, since historically, they had problems with these kinds of people. he thought lobbying produces benefits, but should be carefully monitored.

i think the answer is b.