CSUs - counting a class towards Gen Ed and Major Requirement?

Hello, I’m looking at the CSUN website and looking at their “planning maps” for different majors, which break down the courses needed for each major.
There are some requirements where 1 class counts towards both a major requirement and a gen ed requirement
Example:
English Major - ENGL 258 is a required class for the major, and it’s also a class you can take for their Arts and Humanities Gen Ed Requirement. You’re allowed to take the one class and have it meet 2 requirements.
Does this count as 3 units towards the 140 maximum since it’s just one class? Or does it count as 6 units towards the 140 unit maximum since it’s counting towards 2 different things? Link to where I’m getting information: https://catalog.csun.edu/resource/road-map/2018/english-honors-option-2018/

i’d call the campus advising office for guidance.