The job of first line is egress protection.
By placing the line through the front door Side A We:
Have a shorter exterior stretch
Have a shorter interior stretch
Now control the hallway
Now have faster water on the fire
WHY using the C side is the wrong move in this example
Longer exterior stretch
Longer interior stretch
Hallway control is delayed or unattainable
Possible forcible entry delays
Gates, dogs, fences, pools etc.
Delayed water on the fire
We must OWN the hallway! When your stretch is delayed fire will enter the hallway cutting off egress. Taking the line to the C side is a waste of time and effort and places the line in the wrong location.
For all of you who like the C side approach ask your self about orientation. When a real estate agent shows you a house do they take you through the C side door? No. Because now you have to FIND the hallway when you enter through the A door it is right there in front of you. Could you attack this fire from the C side? Sure you could. Would you be protecting the primary egress? NO!
This question couldn't be more simple the fire needs to go out and quickly. Fears of pushing fire, construction, and smoke are side issues to extinguishment and saving lives.