What means 4-5-1 V Style?

Silly question? Sorry :)
I read about V style and I don't know what is exactly. I think is this...

Option 1?
-------ST-------
AML---------AMR
----MC---MC----
------DCM------
DL--DC--DC--DR

or...

Option 2?

-------ST-------
AML---------AMR
---MC-MC-MC---
----------------
DL--DC--DC--DR


Option 3???
[...]

Thanks

Option 1 yes, but put a red arrow on DMC to equalize it. keep the rest without arrows.

Option 1 is 4-5-1 v style.

Option 2 is 4-3N-2W-1

Aha, thanks both