Are you on the right side or the wrong one.
This is absolutely correct.
There is only the current trend.
All that matters is knowing the current trend.
I think that number 3&5 have a special importance in technical analysis.
For me I think A will be a critical point in future to observe, a break bellow that signify market has change direction. B is a sign of the failure swing and potential for you to exit the market in case you have sold at the critical breaking point of "A" in future.