The DRCs will be added to the widow(er) benefit if:
               
                  - 
                     
                        •
                        
                           NH was entitled to RIB and MBA was increased by DRCs or
                           
                         
                      
                   
                  - 
                     
                        •
                        
                           NH would have been entitled to RIB and MBA would have been increased by DRCs.
                           
                         
                      
                   
               
               NOTE: Entitlement to a benefit from the Railroad Board is not entitlement under the
                  meaning of this section. DRCs can apply even after RRB entitlement.