I think 1b because it seems to corroborate with things I've read insofar as I can remember them
That's as good a reason as any to believe something; have you read anything on this post that might influence your opinion?
When I saw the idea that "we subsidize corporations" before, it didn't strike me as obviously wrong. I think I would have imagined a Walmart manager saying "Our workers get all these benefits, so they can survive on less salary, so we can pay them less and profit." But when I look at it from the employee's point of view I see a different picture: "I get all these benefits; I can survive with less salary; why should I work at Walmart?"