Focusing on impediments to membership entails Group of answer choices Looking at why individuals want to join groups Focusing upon neither the 'demand-side' and 'supply-side' of joining an insurgent group Focusing upon both the 'demand-side' and 'supply-side' of joining an insurgent group Focusing upon the 'demand-side' of joining an insurgent group Focusing upon the 'supply-side' of joining an insurgent group