2. No. Only A works there. The sentence refers to a time in the past. The phrase "even so" has a bit of a negating effect on what comes before it. That woul d not make sense here. "Even so" means "even though that is true".... What follows is something that doesn't quite follow from the first thought.
John is a very honest man. Even so, he cheats on his income tax.
3. Yes. Very good.
I'm very proud of you!
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