To be the parent of a worker, a claimant must be:
         
            - 
               
                  • 
                     the natural parent of the worker and entitled to share as a parent in the distribution
                        of the worker's intestate personal property under the laws of the State of the worker's
                        last domicile; or
                      
 
 
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                  • 
                     the stepparent of the worker by a marriage entered into before the worker attained
                        age 16; or
                      
 
 
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                  • 
                     an adopting parent who legally adopted the worker before the worker attained age 16.