Determination of Fault: Car a and B Stop and to Let Me Go Car B Hit Me After I Proceeded to Go

My question involves a traffic accident in the State of:



Washington

If there are 3 lanes of traffic. Car A in lane 1, Car B in lane 2 and Lane 3 turning lane. Car A and B stop and to let me go into lane 3 from drive way car b hits me after I proceed turning right on to lane 3 turning lane. There was enough room to drive through safely. Light is red who is at fault.

Determination of Fault: Car a and B Stop and to Let Me Go Car B Hit Me After I Proceeded to Go