B is absolutely not easy to fix, if the government does not offer the bid for public application, and pre-selects the one bidder that they plan to award the contact to, and only invites that one contractor to submit a bid.

I think that you have a naive view of the level of corruption at play in this country. This is how you end up with an incompetent swimming pool contractor destroying a national monument for profit. https://www.cbsnews.com/news/company-trump-donor-cafaro-refl...

Even if they pretend the bid is open, they will write the contract requirements in such specific detail that only a single (unofficially pre-selected) vendor can feasibly bid on it.

They don’t even need to only invite the one contractor, just let that one contractor write the RFP so only they can meet the requirements and let the contract for public bid and you’ll get the same outcome.