Sara and Mona are Naveed’s wives. Huma is Mona’s step-daughter. How is the Sara related to Huma?

Sara & Mona are Wives of Naveed
Huma is Step Daughter of Mona
Sara & Mona are Wives of Naveed
Huma is daughter of Naveed and Sara.
Sara and Mona both are mothers of Huma but Mona is step-mother.