Quick LOS question

[jux]

Does that address your question?

Sorry, the last question was actually about elevation, not light woods.
I try to illustrate my question:

Code:

_1____2
      \
       \_3_______

So I understand how [2] has LOS to [3] as [2] is standing on the slope. but I am assuming that [1] should not have visibility to [3] because the elevation is blocking.

So that can illustrate why I don't understand how A has LOS to C in the example above (regardless of light woods).