So in my opinion a further way like "B" seems like the most realistic.
I don't think this way is possible anymore. (not enough momentum)
If it would break the 400 this time the resistance would become a strong support for further buy opportunities.
Most likely to occur. We now know where the bottom is, at around 300.
Because the resistance at ~400 can't be broken yet the price will likely fall down to this bottom again.
This will build a good buy opportunity.
Then we'll see if it can brake the resistance of ~400 at the next try.
If it breaks it like in B it will build a strong support and everytime from then, when it falls back to 400, it will be a good buy opportunity again.
If it goes like B but isn't able to break 400 again (you'll realize it like at this moment), then you should sell and wait until it falls back to 300 again - and then buy opportunity again.
If it can break even the next resistance at 548 I see potential up to 700 here. If not, a small correction to 484 might be possible.