Does Counter Strength is applied multiple times

By F5Q9A3, in Warhammer: Diskwars

Easy Scenario:

A orc disc is pinned from 2 empire disc. How is now the Result in the melee Phase?

a) Does the Orc disk get both Attack Strenght from the 2 Empire Disk's and is dealing every of this 2 Empire disk's his Counter Strenght value or b) has the Orc Player to choose which one of the 2 Empire Disk's getting his Counter Strenght value?

B) The Orc player has to chose which of the two disks to hit with his counter strength.