I have a problem with Bombers and Fighters

"Airplanes will now attack every enemy within their patrol radius four times per hour. This includes other airplanes crossing this airspace. They will thereby focus on the most vulnerable targets: interceptors mainly attack other airplanes, tactical bombers attack ground units and naval bombers focus on ships within their patrol radius. In return they receive defensive damage from those attacked armies."

So i am curios if i want to attack a target with planes what is it better :

A - to click attack it with Bombers and Fighters ( hoping the fighters will protect the bombers in case fighters are sent for it )

B - select patrol for the Bombers and the fighters and place the target inside the patrol area .

C- select the bombers to attack and the fighters to patrol the area around the target